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Edit File: culori.js

// src/index.js
  var src_exports = {};
  __export(src_exports, {
    a98: () => a98,
    average: () => average,
    averageAngle: () => averageAngle,
    averageNumber: () => averageNumber,
    blend: () => blend_default,
    blerp: () => blerp,
    clampChroma: () => clampChroma,
    clampGamut: () => clampGamut,
    clampRgb: () => clampRgb,
    colorsNamed: () => named_default,
    convertA98ToXyz65: () => convertA98ToXyz65_default,
    convertCubehelixToRgb: () => convertCubehelixToRgb_default,
    convertDlchToLab65: () => convertDlchToLab65_default,
    convertHsiToRgb: () => convertHsiToRgb,
    convertHslToRgb: () => convertHslToRgb,
    convertHsvToRgb: () => convertHsvToRgb,
    convertHwbToRgb: () => convertHwbToRgb,
    convertJabToJch: () => convertJabToJch_default,
    convertJabToRgb: () => convertJabToRgb_default,
    convertJabToXyz65: () => convertJabToXyz65_default,
    convertJchToJab: () => convertJchToJab_default,
    convertLab65ToDlch: () => convertLab65ToDlch_default,
    convertLab65ToRgb: () => convertLab65ToRgb_default,
    convertLab65ToXyz65: () => convertLab65ToXyz65_default,
    convertLabToLch: () => convertLabToLch_default,
    convertLabToRgb: () => convertLabToRgb_default,
    convertLabToXyz50: () => convertLabToXyz50_default,
    convertLchToLab: () => convertLchToLab_default,
    convertLchuvToLuv: () => convertLchuvToLuv_default,
    convertLrgbToOklab: () => convertLrgbToOklab_default,
    convertLrgbToRgb: () => convertLrgbToRgb_default,
    convertLuvToLchuv: () => convertLuvToLchuv_default,
    convertLuvToXyz50: () => convertLuvToXyz50_default,
    convertOkhslToOklab: () => convertOkhslToOklab,
    convertOkhsvToOklab: () => convertOkhsvToOklab,
    convertOklabToLrgb: () => convertOklabToLrgb_default,
    convertOklabToOkhsl: () => convertOklabToOkhsl,
    convertOklabToOkhsv: () => convertOklabToOkhsv,
    convertOklabToRgb: () => convertOklabToRgb_default,
    convertP3ToXyz65: () => convertP3ToXyz65_default,
    convertProphotoToXyz50: () => convertProphotoToXyz50_default,
    convertRec2020ToXyz65: () => convertRec2020ToXyz65_default,
    convertRgbToCubehelix: () => convertRgbToCubehelix_default,
    convertRgbToHsi: () => convertRgbToHsi,
    convertRgbToHsl: () => convertRgbToHsl,
    convertRgbToHsv: () => convertRgbToHsv,
    convertRgbToHwb: () => convertRgbToHwb,
    convertRgbToJab: () => convertRgbToJab_default,
    convertRgbToLab: () => convertRgbToLab_default,
    convertRgbToLab65: () => convertRgbToLab65_default,
    convertRgbToLrgb: () => convertRgbToLrgb_default,
    convertRgbToOklab: () => convertRgbToOklab_default,
    convertRgbToXyb: () => convertRgbToXyb_default,
    convertRgbToXyz50: () => convertRgbToXyz50_default,
    convertRgbToXyz65: () => convertRgbToXyz65_default,
    convertRgbToYiq: () => convertRgbToYiq_default,
    convertXybToRgb: () => convertXybToRgb_default,
    convertXyz50ToLab: () => convertXyz50ToLab_default,
    convertXyz50ToLuv: () => convertXyz50ToLuv_default,
    convertXyz50ToProphoto: () => convertXyz50ToProphoto_default,
    convertXyz50ToRgb: () => convertXyz50ToRgb_default,
    convertXyz50ToXyz65: () => convertXyz50ToXyz65_default,
    convertXyz65ToA98: () => convertXyz65ToA98_default,
    convertXyz65ToJab: () => convertXyz65ToJab_default,
    convertXyz65ToLab65: () => convertXyz65ToLab65_default,
    convertXyz65ToP3: () => convertXyz65ToP3_default,
    convertXyz65ToRec2020: () => convertXyz65ToRec2020_default,
    convertXyz65ToRgb: () => convertXyz65ToRgb_default,
    convertXyz65ToXyz50: () => convertXyz65ToXyz50_default,
    convertYiqToRgb: () => convertYiqToRgb_default,
    converter: () => converter_default,
    cubehelix: () => cubehelix,
    differenceCie76: () => differenceCie76,
    differenceCie94: () => differenceCie94,
    differenceCiede2000: () => differenceCiede2000,
    differenceCmc: () => differenceCmc,
    differenceEuclidean: () => differenceEuclidean,
    differenceHueChroma: () => differenceHueChroma,
    differenceHueNaive: () => differenceHueNaive,
    differenceHueSaturation: () => differenceHueSaturation,
    differenceHyab: () => differenceHyab,
    differenceKotsarenkoRamos: () => differenceKotsarenkoRamos,
    displayable: () => displayable,
    dlab: () => dlab,
    dlch: () => dlch,
    easingGamma: () => gamma_default,
    easingInOutSine: () => inOutSine_default,
    easingMidpoint: () => midpoint_default,
    easingSmootherstep: () => smootherstep_default,
    easingSmoothstep: () => easingSmoothstep,
    easingSmoothstepInverse: () => easingSmoothstepInverse,
    filterBrightness: () => filterBrightness,
    filterContrast: () => filterContrast,
    filterDeficiencyDeuter: () => filterDeficiencyDeuter,
    filterDeficiencyProt: () => filterDeficiencyProt,
    filterDeficiencyTrit: () => filterDeficiencyTrit,
    filterGrayscale: () => filterGrayscale,
    filterHueRotate: () => filterHueRotate,
    filterInvert: () => filterInvert,
    filterSaturate: () => filterSaturate,
    filterSepia: () => filterSepia,
    fixupAlpha: () => fixupAlpha,
    fixupHueDecreasing: () => fixupHueDecreasing,
    fixupHueIncreasing: () => fixupHueIncreasing,
    fixupHueLonger: () => fixupHueLonger,
    fixupHueShorter: () => fixupHueShorter,
    formatCss: () => formatCss,
    formatHex: () => formatHex,
    formatHex8: () => formatHex8,
    formatHsl: () => formatHsl,
    formatRgb: () => formatRgb,
    getMode: () => getMode,
    hsi: () => hsi,
    hsl: () => hsl,
    hsv: () => hsv,
    hwb: () => hwb,
    inGamut: () => inGamut,
    interpolate: () => interpolate,
    interpolateWith: () => interpolateWith,
    interpolateWithPremultipliedAlpha: () => interpolateWithPremultipliedAlpha,
    interpolatorLinear: () => interpolatorLinear,
    interpolatorPiecewise: () => interpolatorPiecewise,
    interpolatorSplineBasis: () => interpolatorSplineBasis,
    interpolatorSplineBasisClosed: () => interpolatorSplineBasisClosed,
    interpolatorSplineMonotone: () => interpolatorSplineMonotone,
    interpolatorSplineMonotone2: () => interpolatorSplineMonotone2,
    interpolatorSplineMonotoneClosed: () => interpolatorSplineMonotoneClosed,
    interpolatorSplineNatural: () => interpolatorSplineNatural,
    interpolatorSplineNaturalClosed: () => interpolatorSplineNaturalClosed,
    jab: () => jab,
    jch: () => jch,
    lab: () => lab,
    lab65: () => lab65,
    lch: () => lch,
    lch65: () => lch65,
    lchuv: () => lchuv,
    lerp: () => lerp,
    lrgb: () => lrgb,
    luv: () => luv,
    mapAlphaDivide: () => mapAlphaDivide,
    mapAlphaMultiply: () => mapAlphaMultiply,
    mapTransferGamma: () => mapTransferGamma,
    mapTransferLinear: () => mapTransferLinear,
    mapper: () => mapper,
    modeA98: () => definition_default2,
    modeCubehelix: () => definition_default3,
    modeDlab: () => definition_default4,
    modeDlch: () => definition_default5,
    modeHsi: () => definition_default6,
    modeHsl: () => definition_default7,
    modeHsv: () => definition_default8,
    modeHwb: () => definition_default9,
    modeJab: () => definition_default10,
    modeJch: () => definition_default11,
    modeLab: () => definition_default12,
    modeLab65: () => definition_default13,
    modeLch: () => definition_default14,
    modeLch65: () => definition_default15,
    modeLchuv: () => definition_default16,
    modeLrgb: () => definition_default17,
    modeLuv: () => definition_default18,
    modeOkhsl: () => modeOkhsl_default,
    modeOkhsv: () => modeOkhsv_default,
    modeOklab: () => definition_default19,
    modeOklch: () => definition_default20,
    modeP3: () => definition_default21,
    modeProphoto: () => definition_default22,
    modeRec2020: () => definition_default23,
    modeRgb: () => definition_default,
    modeXyb: () => definition_default24,
    modeXyz50: () => definition_default25,
    modeXyz65: () => definition_default26,
    modeYiq: () => definition_default27,
    nearest: () => nearest_default,
    okhsl: () => okhsl,
    okhsv: () => okhsv,
    oklab: () => oklab,
    oklch: () => oklch,
    p3: () => p3,
    parse: () => parse_default,
    parseHex: () => parseHex_default,
    parseHsl: () => parseHsl_default,
    parseHslLegacy: () => parseHslLegacy_default,
    parseHwb: () => parseHwb_default,
    parseLab: () => parseLab_default,
    parseLch: () => parseLch_default,
    parseNamed: () => parseNamed_default,
    parseOklab: () => parseOklab_default,
    parseOklch: () => parseOklch_default,
    parseRgb: () => parseRgb_default,
    parseRgbLegacy: () => parseRgbLegacy_default,
    parseTransparent: () => parseTransparent_default,
    prophoto: () => prophoto,
    random: () => random_default,
    rec2020: () => rec2020,
    removeParser: () => removeParser,
    rgb: () => rgb3,
    round: () => round_default,
    samples: () => samples_default,
    serializeHex: () => serializeHex,
    serializeHex8: () => serializeHex8,
    serializeHsl: () => serializeHsl,
    serializeRgb: () => serializeRgb,
    toGamut: () => toGamut,
    trilerp: () => trilerp,
    unlerp: () => unlerp,
    useMode: () => useMode,
    useParser: () => useParser,
    wcagContrast: () => contrast,
    wcagLuminance: () => luminance,
    xyb: () => xyb,
    xyz50: () => xyz50,
    xyz65: () => xyz65,
    yiq: () => yiq
  });

// src/rgb/parseNumber.js
  var parseNumber = (color, len) => {
    if (typeof color !== "number")
      return;
    if (len === 3) {
      return {
        mode: "rgb",
        r: (color >> 8 & 15 | color >> 4 & 240) / 255,
        g: (color >> 4 & 15 | color & 240) / 255,
        b: (color & 15 | color << 4 & 240) / 255
      };
    }
    if (len === 4) {
      return {
        mode: "rgb",
        r: (color >> 12 & 15 | color >> 8 & 240) / 255,
        g: (color >> 8 & 15 | color >> 4 & 240) / 255,
        b: (color >> 4 & 15 | color & 240) / 255,
        alpha: (color & 15 | color << 4 & 240) / 255
      };
    }
    if (len === 6) {
      return {
        mode: "rgb",
        r: (color >> 16 & 255) / 255,
        g: (color >> 8 & 255) / 255,
        b: (color & 255) / 255
      };
    }
    if (len === 8) {
      return {
        mode: "rgb",
        r: (color >> 24 & 255) / 255,
        g: (color >> 16 & 255) / 255,
        b: (color >> 8 & 255) / 255,
        alpha: (color & 255) / 255
      };
    }
  };
  var parseNumber_default = parseNumber;

// src/colors/named.js
  var named = {
    aliceblue: 15792383,
    antiquewhite: 16444375,
    aqua: 65535,
    aquamarine: 8388564,
    azure: 15794175,
    beige: 16119260,
    bisque: 16770244,
    black: 0,
    blanchedalmond: 16772045,
    blue: 255,
    blueviolet: 9055202,
    brown: 10824234,
    burlywood: 14596231,
    cadetblue: 6266528,
    chartreuse: 8388352,
    chocolate: 13789470,
    coral: 16744272,
    cornflowerblue: 6591981,
    cornsilk: 16775388,
    crimson: 14423100,
    cyan: 65535,
    darkblue: 139,
    darkcyan: 35723,
    darkgoldenrod: 12092939,
    darkgray: 11119017,
    darkgreen: 25600,
    darkgrey: 11119017,
    darkkhaki: 12433259,
    darkmagenta: 9109643,
    darkolivegreen: 5597999,
    darkorange: 16747520,
    darkorchid: 10040012,
    darkred: 9109504,
    darksalmon: 15308410,
    darkseagreen: 9419919,
    darkslateblue: 4734347,
    darkslategray: 3100495,
    darkslategrey: 3100495,
    darkturquoise: 52945,
    darkviolet: 9699539,
    deeppink: 16716947,
    deepskyblue: 49151,
    dimgray: 6908265,
    dimgrey: 6908265,
    dodgerblue: 2003199,
    firebrick: 11674146,
    floralwhite: 16775920,
    forestgreen: 2263842,
    fuchsia: 16711935,
    gainsboro: 14474460,
    ghostwhite: 16316671,
    gold: 16766720,
    goldenrod: 14329120,
    gray: 8421504,
    green: 32768,
    greenyellow: 11403055,
    grey: 8421504,
    honeydew: 15794160,
    hotpink: 16738740,
    indianred: 13458524,
    indigo: 4915330,
    ivory: 16777200,
    khaki: 15787660,
    lavender: 15132410,
    lavenderblush: 16773365,
    lawngreen: 8190976,
    lemonchiffon: 16775885,
    lightblue: 11393254,
    lightcoral: 15761536,
    lightcyan: 14745599,
    lightgoldenrodyellow: 16448210,
    lightgray: 13882323,
    lightgreen: 9498256,
    lightgrey: 13882323,
    lightpink: 16758465,
    lightsalmon: 16752762,
    lightseagreen: 2142890,
    lightskyblue: 8900346,
    lightslategray: 7833753,
    lightslategrey: 7833753,
    lightsteelblue: 11584734,
    lightyellow: 16777184,
    lime: 65280,
    limegreen: 3329330,
    linen: 16445670,
    magenta: 16711935,
    maroon: 8388608,
    mediumaquamarine: 6737322,
    mediumblue: 205,
    mediumorchid: 12211667,
    mediumpurple: 9662683,
    mediumseagreen: 3978097,
    mediumslateblue: 8087790,
    mediumspringgreen: 64154,
    mediumturquoise: 4772300,
    mediumvioletred: 13047173,
    midnightblue: 1644912,
    mintcream: 16121850,
    mistyrose: 16770273,
    moccasin: 16770229,
    navajowhite: 16768685,
    navy: 128,
    oldlace: 16643558,
    olive: 8421376,
    olivedrab: 7048739,
    orange: 16753920,
    orangered: 16729344,
    orchid: 14315734,
    palegoldenrod: 15657130,
    palegreen: 10025880,
    paleturquoise: 11529966,
    palevioletred: 14381203,
    papayawhip: 16773077,
    peachpuff: 16767673,
    peru: 13468991,
    pink: 16761035,
    plum: 14524637,
    powderblue: 11591910,
    purple: 8388736,
    // Added in CSS Colors Level 4:
    // https://drafts.csswg.org/css-color/#changes-from-3
    rebeccapurple: 6697881,
    red: 16711680,
    rosybrown: 12357519,
    royalblue: 4286945,
    saddlebrown: 9127187,
    salmon: 16416882,
    sandybrown: 16032864,
    seagreen: 3050327,
    seashell: 16774638,
    sienna: 10506797,
    silver: 12632256,
    skyblue: 8900331,
    slateblue: 6970061,
    slategray: 7372944,
    slategrey: 7372944,
    snow: 16775930,
    springgreen: 65407,
    steelblue: 4620980,
    tan: 13808780,
    teal: 32896,
    thistle: 14204888,
    tomato: 16737095,
    turquoise: 4251856,
    violet: 15631086,
    wheat: 16113331,
    white: 16777215,
    whitesmoke: 16119285,
    yellow: 16776960,
    yellowgreen: 10145074
  };
  var named_default = named;

// src/rgb/parseNamed.js
  var parseNamed = (color) => {
    return parseNumber_default(named_default[color.toLowerCase()], 6);
  };
  var parseNamed_default = parseNamed;

// src/rgb/parseHex.js
  var hex = /^#?([0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{4}|[0-9a-f]{3})$/i;
  var parseHex = (color) => {
    let match;
    return (match = color.match(hex)) ? parseNumber_default(parseInt(match[1], 16), match[1].length) : void 0;
  };
  var parseHex_default = parseHex;

// src/util/regex.js
  var num = "([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)";
  var num_none = `(?:${num}|none)`;
  var per = `${num}%`;
  var per_none = `(?:${num}%|none)`;
  var num_per = `(?:${num}%|${num})`;
  var num_per_none = `(?:${num}%|${num}|none)`;
  var hue = `(?:${num}(deg|grad|rad|turn)|${num})`;
  var hue_none = `(?:${num}(deg|grad|rad|turn)|${num}|none)`;
  var c = `\\s*,\\s*`;
  var rx_num_per_none = new RegExp("^" + num_per_none + "$");

// src/rgb/parseRgbLegacy.js
  var rgb_num_old = new RegExp(
    `^rgba?\$\\s*${num}${c}${num}${c}${num}\\s*(?:,\\s*${num_per}\\s*)?\$$`
  );
  var rgb_per_old = new RegExp(
    `^rgba?\$\\s*${per}${c}${per}${c}${per}\\s*(?:,\\s*${num_per}\\s*)?\$$`
  );
  var parseRgbLegacy = (color) => {
    let res = { mode: "rgb" };
    let match;
    if (match = color.match(rgb_num_old)) {
      if (match[1] !== void 0) {
        res.r = match[1] / 255;
      }
      if (match[2] !== void 0) {
        res.g = match[2] / 255;
      }
      if (match[3] !== void 0) {
        res.b = match[3] / 255;
      }
    } else if (match = color.match(rgb_per_old)) {
      if (match[1] !== void 0) {
        res.r = match[1] / 100;
      }
      if (match[2] !== void 0) {
        res.g = match[2] / 100;
      }
      if (match[3] !== void 0) {
        res.b = match[3] / 100;
      }
    } else {
      return void 0;
    }
    if (match[4] !== void 0) {
      res.alpha = match[4] / 100;
    } else if (match[5] !== void 0) {
      res.alpha = +match[5];
    }
    return res;
  };
  var parseRgbLegacy_default = parseRgbLegacy;

// src/_prepare.js
  var prepare = (color, mode) => color === void 0 ? void 0 : typeof color !== "object" ? parse_default(color) : color.mode !== void 0 ? color : mode ? { ...color, mode } : void 0;
  var prepare_default = prepare;

// src/converter.js
  var converter = (target_mode = "rgb") => (color) => (color = prepare_default(color, target_mode)) !== void 0 ? (
    // if the color's mode corresponds to our target mode
    color.mode === target_mode ? (
      // then just return the color
      color
    ) : (
      // otherwise check to see if we have a dedicated
      // converter for the target mode
      converters[color.mode][target_mode] ? (
        // and return its result...
        converters[color.mode][target_mode](color)
      ) : (
        // ...otherwise pass through RGB as an intermediary step.
        // if the target mode is RGB...
        target_mode === "rgb" ? (
          // just return the RGB
          converters[color.mode].rgb(color)
        ) : (
          // otherwise convert color.mode -> RGB -> target_mode
          converters.rgb[target_mode](converters[color.mode].rgb(color))
        )
      )
    )
  ) : void 0;
  var converter_default = converter;

// src/modes.js
  var converters = {};
  var modes = {};
  var parsers = [];
  var colorProfiles = {};
  var identity = (v) => v;
  var useMode = (definition28) => {
    converters[definition28.mode] = {
      ...converters[definition28.mode],
      ...definition28.toMode
    };
    Object.keys(definition28.fromMode || {}).forEach((k4) => {
      if (!converters[k4]) {
        converters[k4] = {};
      }
      converters[k4][definition28.mode] = definition28.fromMode[k4];
    });
    if (!definition28.ranges) {
      definition28.ranges = {};
    }
    if (!definition28.difference) {
      definition28.difference = {};
    }
    definition28.channels.forEach((channel) => {
      if (definition28.ranges[channel] === void 0) {
        definition28.ranges[channel] = [0, 1];
      }
      if (!definition28.interpolate[channel]) {
        throw new Error(`Missing interpolator for: ${channel}`);
      }
      if (typeof definition28.interpolate[channel] === "function") {
        definition28.interpolate[channel] = {
          use: definition28.interpolate[channel]
        };
      }
      if (!definition28.interpolate[channel].fixup) {
        definition28.interpolate[channel].fixup = identity;
      }
    });
    modes[definition28.mode] = definition28;
    (definition28.parse || []).forEach((parser) => {
      useParser(parser, definition28.mode);
    });
    return converter_default(definition28.mode);
  };
  var getMode = (mode) => modes[mode];
  var useParser = (parser, mode) => {
    if (typeof parser === "string") {
      if (!mode) {
        throw new Error(`'mode' required when 'parser' is a string`);
      }
      colorProfiles[parser] = mode;
    } else if (typeof parser === "function") {
      if (parsers.indexOf(parser) < 0) {
        parsers.push(parser);
      }
    }
  };
  var removeParser = (parser) => {
    if (typeof parser === "string") {
      delete colorProfiles[parser];
    } else if (typeof parser === "function") {
      const idx = parsers.indexOf(parser);
      if (idx > 0) {
        parsers.splice(idx, 1);
      }
    }
  };

// src/parse.js
  var IdentStartCodePoint = /[^\x00-\x7F]|[a-zA-Z_]/;
  var IdentCodePoint = /[^\x00-\x7F]|[-\w]/;
  var Tok = {
    Function: "function",
    Ident: "ident",
    Number: "number",
    Percentage: "percentage",
    ParenClose: ")",
    None: "none",
    Hue: "hue",
    Alpha: "alpha"
  };
  var _i = 0;
  function is_num(chars) {
    let ch = chars[_i];
    let ch1 = chars[_i + 1];
    if (ch === "-" || ch === "+") {
      return /\d/.test(ch1) || ch1 === "." && /\d/.test(chars[_i + 2]);
    }
    if (ch === ".") {
      return /\d/.test(ch1);
    }
    return /\d/.test(ch);
  }
  function is_ident(chars) {
    if (_i >= chars.length) {
      return false;
    }
    let ch = chars[_i];
    if (IdentStartCodePoint.test(ch)) {
      return true;
    }
    if (ch === "-") {
      if (chars.length - _i < 2) {
        return false;
      }
      let ch1 = chars[_i + 1];
      if (ch1 === "-" || IdentStartCodePoint.test(ch1)) {
        return true;
      }
      return false;
    }
    return false;
  }
  var huenits = {
    deg: 1,
    rad: 180 / Math.PI,
    grad: 9 / 10,
    turn: 360
  };
  function num2(chars) {
    let value = "";
    if (chars[_i] === "-" || chars[_i] === "+") {
      value += chars[_i++];
    }
    value += digits(chars);
    if (chars[_i] === "." && /\d/.test(chars[_i + 1])) {
      value += chars[_i++] + digits(chars);
    }
    if (chars[_i] === "e" || chars[_i] === "E") {
      if ((chars[_i + 1] === "-" || chars[_i + 1] === "+") && /\d/.test(chars[_i + 2])) {
        value += chars[_i++] + chars[_i++] + digits(chars);
      } else if (/\d/.test(chars[_i + 1])) {
        value += chars[_i++] + digits(chars);
      }
    }
    if (is_ident(chars)) {
      let id = ident(chars);
      if (id === "deg" || id === "rad" || id === "turn" || id === "grad") {
        return { type: Tok.Hue, value: value * huenits[id] };
      }
      return void 0;
    }
    if (chars[_i] === "%") {
      _i++;
      return { type: Tok.Percentage, value: +value };
    }
    return { type: Tok.Number, value: +value };
  }
  function digits(chars) {
    let v = "";
    while (/\d/.test(chars[_i])) {
      v += chars[_i++];
    }
    return v;
  }
  function ident(chars) {
    let v = "";
    while (_i < chars.length && IdentCodePoint.test(chars[_i])) {
      v += chars[_i++];
    }
    return v;
  }
  function identlike(chars) {
    let v = ident(chars);
    if (chars[_i] === "(") {
      _i++;
      return { type: Tok.Function, value: v };
    }
    if (v === "none") {
      return { type: Tok.None, value: void 0 };
    }
    return { type: Tok.Ident, value: v };
  }
  function tokenize(str = "") {
    let chars = str.trim();
    let tokens = [];
    let ch;
    _i = 0;
    while (_i < chars.length) {
      ch = chars[_i++];
      if (ch === "\n" || ch === "	" || ch === " ") {
        while (_i < chars.length && (chars[_i] === "\n" || chars[_i] === "	" || chars[_i] === " ")) {
          _i++;
        }
        continue;
      }
      if (ch === ",") {
        return void 0;
      }
      if (ch === ")") {
        tokens.push({ type: Tok.ParenClose });
        continue;
      }
      if (ch === "+") {
        _i--;
        if (is_num(chars)) {
          tokens.push(num2(chars));
          continue;
        }
        return void 0;
      }
      if (ch === "-") {
        _i--;
        if (is_num(chars)) {
          tokens.push(num2(chars));
          continue;
        }
        if (is_ident(chars)) {
          tokens.push({ type: Tok.Ident, value: ident(chars) });
          continue;
        }
        return void 0;
      }
      if (ch === ".") {
        _i--;
        if (is_num(chars)) {
          tokens.push(num2(chars));
          continue;
        }
        return void 0;
      }
      if (ch === "/") {
        while (_i < chars.length && (chars[_i] === "\n" || chars[_i] === "	" || chars[_i] === " ")) {
          _i++;
        }
        let alpha;
        if (is_num(chars)) {
          alpha = num2(chars);
          if (alpha.type !== Tok.Hue) {
            tokens.push({ type: Tok.Alpha, value: alpha });
            continue;
          }
        }
        if (is_ident(chars)) {
          if (ident(chars) === "none") {
            tokens.push({
              type: Tok.Alpha,
              value: { type: Tok.None, value: void 0 }
            });
            continue;
          }
        }
        return void 0;
      }
      if (/\d/.test(ch)) {
        _i--;
        tokens.push(num2(chars));
        continue;
      }
      if (IdentStartCodePoint.test(ch)) {
        _i--;
        tokens.push(identlike(chars));
        continue;
      }
      return void 0;
    }
    return tokens;
  }
  function parseColorSyntax(tokens) {
    tokens._i = 0;
    let token = tokens[tokens._i++];
    if (!token || token.type !== Tok.Function || token.value !== "color") {
      return void 0;
    }
    token = tokens[tokens._i++];
    if (token.type !== Tok.Ident) {
      return void 0;
    }
    const mode = colorProfiles[token.value];
    if (!mode) {
      return void 0;
    }
    const res = { mode };
    const coords = consumeCoords(tokens, false);
    if (!coords) {
      return void 0;
    }
    const channels = getMode(mode).channels;
    for (let ii = 0, c4; ii < channels.length; ii++) {
      c4 = coords[ii];
      if (c4.type !== Tok.None) {
        res[channels[ii]] = c4.type === Tok.Number ? c4.value : c4.value / 100;
      }
    }
    return res;
  }
  function consumeCoords(tokens, includeHue) {
    const coords = [];
    let token;
    while (tokens._i < tokens.length) {
      token = tokens[tokens._i++];
      if (token.type === Tok.None || token.type === Tok.Number || token.type === Tok.Alpha || token.type === Tok.Percentage || includeHue && token.type === Tok.Hue) {
        coords.push(token);
        continue;
      }
      if (token.type === Tok.ParenClose) {
        if (tokens._i < tokens.length) {
          return void 0;
        }
        continue;
      }
      return void 0;
    }
    if (coords.length < 3 || coords.length > 4) {
      return void 0;
    }
    if (coords.length === 4) {
      if (coords[3].type !== Tok.Alpha) {
        return void 0;
      }
      coords[3] = coords[3].value;
    }
    if (coords.length === 3) {
      coords.push({ type: Tok.None, value: void 0 });
    }
    return coords.every((c4) => c4.type !== Tok.Alpha) ? coords : void 0;
  }
  function parseModernSyntax(tokens, includeHue) {
    tokens._i = 0;
    let token = tokens[tokens._i++];
    if (!token || token.type !== Tok.Function) {
      return void 0;
    }
    let coords = consumeCoords(tokens, includeHue);
    if (!coords) {
      return void 0;
    }
    coords.unshift(token.value);
    return coords;
  }
  var parse = (color) => {
    if (typeof color !== "string") {
      return void 0;
    }
    const tokens = tokenize(color);
    const parsed = tokens ? parseModernSyntax(tokens, true) : void 0;
    let result = void 0;
    let i = 0;
    let len = parsers.length;
    while (i < len) {
      if ((result = parsers[i++](color, parsed)) !== void 0) {
        return result;
      }
    }
    return tokens ? parseColorSyntax(tokens) : void 0;
  };
  var parse_default = parse;

// src/rgb/parseRgb.js
  function parseRgb(color, parsed) {
    if (!parsed || parsed[0] !== "rgb" && parsed[0] !== "rgba") {
      return void 0;
    }
    const res = { mode: "rgb" };
    const [, r2, g, b, alpha] = parsed;
    if (r2.type === Tok.Hue || g.type === Tok.Hue || b.type === Tok.Hue) {
      return void 0;
    }
    if (r2.type !== Tok.None) {
      res.r = r2.type === Tok.Number ? r2.value / 255 : r2.value / 100;
    }
    if (g.type !== Tok.None) {
      res.g = g.type === Tok.Number ? g.value / 255 : g.value / 100;
    }
    if (b.type !== Tok.None) {
      res.b = b.type === Tok.Number ? b.value / 255 : b.value / 100;
    }
    if (alpha.type !== Tok.None) {
      res.alpha = alpha.type === Tok.Number ? alpha.value : alpha.value / 100;
    }
    return res;
  }
  var parseRgb_default = parseRgb;

// src/rgb/parseTransparent.js
  var parseTransparent = (c4) => c4 === "transparent" ? { mode: "rgb", r: 0, g: 0, b: 0, alpha: 0 } : void 0;
  var parseTransparent_default = parseTransparent;

// src/interpolate/lerp.js
  var lerp = (a, b, t) => a + t * (b - a);
  var unlerp = (a, b, v) => (v - a) / (b - a);
  var blerp = (a00, a01, a10, a11, tx, ty) => {
    return lerp(lerp(a00, a01, tx), lerp(a10, a11, tx), ty);
  };
  var trilerp = (a000, a010, a100, a110, a001, a011, a101, a111, tx, ty, tz) => {
    return lerp(
      blerp(a000, a010, a100, a110, tx, ty),
      blerp(a001, a011, a101, a111, tx, ty),
      tz
    );
  };

// src/interpolate/piecewise.js
  var get_classes = (arr) => {
    let classes = [];
    for (let i = 0; i < arr.length - 1; i++) {
      let a = arr[i];
      let b = arr[i + 1];
      if (a === void 0 && b === void 0) {
        classes.push(void 0);
      } else if (a !== void 0 && b !== void 0) {
        classes.push([a, b]);
      } else {
        classes.push(a !== void 0 ? [a, a] : [b, b]);
      }
    }
    return classes;
  };
  var interpolatorPiecewise = (interpolator2) => (arr) => {
    let classes = get_classes(arr);
    return (t) => {
      let cls = t * classes.length;
      let idx = t >= 1 ? classes.length - 1 : Math.max(Math.floor(cls), 0);
      let pair = classes[idx];
      return pair === void 0 ? void 0 : interpolator2(pair[0], pair[1], cls - idx);
    };
  };

// src/interpolate/linear.js
  var interpolatorLinear = interpolatorPiecewise(lerp);

// src/fixup/alpha.js
  var fixupAlpha = (arr) => {
    let some_defined = false;
    let res = arr.map((v) => {
      if (v !== void 0) {
        some_defined = true;
        return v;
      }
      return 1;
    });
    return some_defined ? res : arr;
  };

// src/rgb/definition.js
  var definition = {
    mode: "rgb",
    channels: ["r", "g", "b", "alpha"],
    parse: [
      parseRgb_default,
      parseHex_default,
      parseRgbLegacy_default,
      parseNamed_default,
      parseTransparent_default,
      "srgb"
    ],
    serialize: "srgb",
    interpolate: {
      r: interpolatorLinear,
      g: interpolatorLinear,
      b: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    },
    gamut: true
  };
  var definition_default = definition;

// src/a98/convertA98ToXyz65.js
  var linearize = (v) => Math.pow(Math.abs(v), 563 / 256) * Math.sign(v);
  var convertA98ToXyz65 = (a982) => {
    let r2 = linearize(a982.r);
    let g = linearize(a982.g);
    let b = linearize(a982.b);
    let res = {
      mode: "xyz65",
      x: 0.5766690429101305 * r2 + 0.1855582379065463 * g + 0.1882286462349947 * b,
      y: 0.297344975250536 * r2 + 0.6273635662554661 * g + 0.0752914584939979 * b,
      z: 0.0270313613864123 * r2 + 0.0706888525358272 * g + 0.9913375368376386 * b
    };
    if (a982.alpha !== void 0) {
      res.alpha = a982.alpha;
    }
    return res;
  };
  var convertA98ToXyz65_default = convertA98ToXyz65;

// src/a98/convertXyz65ToA98.js
  var gamma = (v) => Math.pow(Math.abs(v), 256 / 563) * Math.sign(v);
  var convertXyz65ToA98 = ({ x, y, z, alpha }) => {
    let res = {
      mode: "a98",
      r: gamma(
        x * 2.0415879038107465 - y * 0.5650069742788597 - 0.3447313507783297 * z
      ),
      g: gamma(
        x * -0.9692436362808798 + y * 1.8759675015077206 + 0.0415550574071756 * z
      ),
      b: gamma(
        x * 0.0134442806320312 - y * 0.1183623922310184 + 1.0151749943912058 * z
      )
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz65ToA98_default = convertXyz65ToA98;

// src/lrgb/convertRgbToLrgb.js
  var fn = (c4) => {
    const abs3 = Math.abs(c4);
    if (abs3 <= 0.04045) {
      return c4 / 12.92;
    }
    return (Math.sign(c4) || 1) * Math.pow((abs3 + 0.055) / 1.055, 2.4);
  };
  var convertRgbToLrgb = ({ r: r2, g, b, alpha }) => {
    let res = {
      mode: "lrgb",
      r: fn(r2),
      g: fn(g),
      b: fn(b)
    };
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertRgbToLrgb_default = convertRgbToLrgb;

// src/xyz65/convertRgbToXyz65.js
  var convertRgbToXyz65 = (rgb4) => {
    let { r: r2, g, b, alpha } = convertRgbToLrgb_default(rgb4);
    let res = {
      mode: "xyz65",
      x: 0.4123907992659593 * r2 + 0.357584339383878 * g + 0.1804807884018343 * b,
      y: 0.2126390058715102 * r2 + 0.715168678767756 * g + 0.0721923153607337 * b,
      z: 0.0193308187155918 * r2 + 0.119194779794626 * g + 0.9505321522496607 * b
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertRgbToXyz65_default = convertRgbToXyz65;

// src/lrgb/convertLrgbToRgb.js
  var fn2 = (c4) => {
    const abs3 = Math.abs(c4);
    if (abs3 > 31308e-7) {
      return (Math.sign(c4) || 1) * (1.055 * Math.pow(abs3, 1 / 2.4) - 0.055);
    }
    return c4 * 12.92;
  };
  var convertLrgbToRgb = ({ r: r2, g, b, alpha }, mode = "rgb") => {
    let res = {
      mode,
      r: fn2(r2),
      g: fn2(g),
      b: fn2(b)
    };
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertLrgbToRgb_default = convertLrgbToRgb;

// src/xyz65/convertXyz65ToRgb.js
  var convertXyz65ToRgb = ({ x, y, z, alpha }) => {
    let res = convertLrgbToRgb_default({
      r: x * 3.2409699419045226 - y * 1.537383177570094 - 0.4986107602930034 * z,
      g: x * -0.9692436362808796 + y * 1.8759675015077204 + 0.0415550574071756 * z,
      b: x * 0.0556300796969936 - y * 0.2039769588889765 + 1.0569715142428784 * z
    });
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz65ToRgb_default = convertXyz65ToRgb;

// src/a98/definition.js
  var definition2 = {
    ...definition_default,
    mode: "a98",
    parse: ["a98-rgb"],
    serialize: "a98-rgb",
    fromMode: {
      rgb: (color) => convertXyz65ToA98_default(convertRgbToXyz65_default(color)),
      xyz65: convertXyz65ToA98_default
    },
    toMode: {
      rgb: (color) => convertXyz65ToRgb_default(convertA98ToXyz65_default(color)),
      xyz65: convertA98ToXyz65_default
    }
  };
  var definition_default2 = definition2;

// src/util/normalizeHue.js
  var normalizeHue = (hue3) => (hue3 = hue3 % 360) < 0 ? hue3 + 360 : hue3;
  var normalizeHue_default = normalizeHue;

// src/fixup/hue.js
  var hue2 = (hues, fn5) => {
    return hues.map((hue3, idx, arr) => {
      if (hue3 === void 0) {
        return hue3;
      }
      let normalized = normalizeHue_default(hue3);
      if (idx === 0 || hues[idx - 1] === void 0) {
        return normalized;
      }
      return fn5(normalized - normalizeHue_default(arr[idx - 1]));
    }).reduce((acc, curr) => {
      if (!acc.length || curr === void 0 || acc[acc.length - 1] === void 0) {
        acc.push(curr);
        return acc;
      }
      acc.push(curr + acc[acc.length - 1]);
      return acc;
    }, []);
  };
  var fixupHueShorter = (arr) => hue2(arr, (d) => Math.abs(d) <= 180 ? d : d - 360 * Math.sign(d));
  var fixupHueLonger = (arr) => hue2(arr, (d) => Math.abs(d) >= 180 || d === 0 ? d : d - 360 * Math.sign(d));
  var fixupHueIncreasing = (arr) => hue2(arr, (d) => d >= 0 ? d : d + 360);
  var fixupHueDecreasing = (arr) => hue2(arr, (d) => d <= 0 ? d : d - 360);

// src/cubehelix/constants.js
  var M = [-0.14861, 1.78277, -0.29227, -0.90649, 1.97294, 0];
  var degToRad = Math.PI / 180;
  var radToDeg = 180 / Math.PI;

// src/cubehelix/convertRgbToCubehelix.js
  var DE = M[3] * M[4];
  var BE = M[1] * M[4];
  var BCAD = M[1] * M[2] - M[0] * M[3];
  var convertRgbToCubehelix = ({ r: r2, g, b, alpha }) => {
    let l = (BCAD * b + r2 * DE - g * BE) / (BCAD + DE - BE);
    let x = b - l;
    let y = (M[4] * (g - l) - M[2] * x) / M[3];
    let res = {
      mode: "cubehelix",
      l,
      s: l === 0 || l === 1 ? void 0 : Math.sqrt(x * x + y * y) / (M[4] * l * (1 - l))
    };
    if (res.s)
      res.h = Math.atan2(y, x) * radToDeg - 120;
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertRgbToCubehelix_default = convertRgbToCubehelix;

// src/cubehelix/convertCubehelixToRgb.js
  var convertCubehelixToRgb = ({ h, s, l, alpha }) => {
    let res = { mode: "rgb" };
    h = (h === void 0 ? 0 : h + 120) * degToRad;
    let amp = s === void 0 ? 0 : s * l * (1 - l);
    let cosh = Math.cos(h);
    let sinh = Math.sin(h);
    res.r = l + amp * (M[0] * cosh + M[1] * sinh);
    res.g = l + amp * (M[2] * cosh + M[3] * sinh);
    res.b = l + amp * (M[4] * cosh + M[5] * sinh);
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertCubehelixToRgb_default = convertCubehelixToRgb;

// src/difference.js
  var differenceHueSaturation = (std, smp) => {
    if (std.h === void 0 || smp.h === void 0 || !std.s || !smp.s) {
      return 0;
    }
    let std_h = normalizeHue_default(std.h);
    let smp_h = normalizeHue_default(smp.h);
    let dH = Math.sin((smp_h - std_h + 360) / 2 * Math.PI / 180);
    return 2 * Math.sqrt(std.s * smp.s) * dH;
  };
  var differenceHueNaive = (std, smp) => {
    if (std.h === void 0 || smp.h === void 0) {
      return 0;
    }
    let std_h = normalizeHue_default(std.h);
    let smp_h = normalizeHue_default(smp.h);
    if (Math.abs(smp_h - std_h) > 180) {
      return std_h - (smp_h - 360 * Math.sign(smp_h - std_h));
    }
    return smp_h - std_h;
  };
  var differenceHueChroma = (std, smp) => {
    if (std.h === void 0 || smp.h === void 0 || !std.c || !smp.c) {
      return 0;
    }
    let std_h = normalizeHue_default(std.h);
    let smp_h = normalizeHue_default(smp.h);
    let dH = Math.sin((smp_h - std_h + 360) / 2 * Math.PI / 180);
    return 2 * Math.sqrt(std.c * smp.c) * dH;
  };
  var differenceEuclidean = (mode = "rgb", weights = [1, 1, 1, 0]) => {
    let def = getMode(mode);
    let channels = def.channels;
    let diffs = def.difference;
    let conv = converter_default(mode);
    return (std, smp) => {
      let ConvStd = conv(std);
      let ConvSmp = conv(smp);
      return Math.sqrt(
        channels.reduce((sum, k4, idx) => {
          let delta = diffs[k4] ? diffs[k4](ConvStd, ConvSmp) : ConvStd[k4] - ConvSmp[k4];
          return sum + (weights[idx] || 0) * Math.pow(isNaN(delta) ? 0 : delta, 2);
        }, 0)
      );
    };
  };
  var differenceCie76 = () => differenceEuclidean("lab65");
  var differenceCie94 = (kL = 1, K1 = 0.045, K2 = 0.015) => {
    let lab2 = converter_default("lab65");
    return (std, smp) => {
      let LabStd = lab2(std);
      let LabSmp = lab2(smp);
      let lStd = LabStd.l;
      let aStd = LabStd.a;
      let bStd = LabStd.b;
      let cStd = Math.sqrt(aStd * aStd + bStd * bStd);
      let lSmp = LabSmp.l;
      let aSmp = LabSmp.a;
      let bSmp = LabSmp.b;
      let cSmp = Math.sqrt(aSmp * aSmp + bSmp * bSmp);
      let dL2 = Math.pow(lStd - lSmp, 2);
      let dC2 = Math.pow(cStd - cSmp, 2);
      let dH2 = Math.pow(aStd - aSmp, 2) + Math.pow(bStd - bSmp, 2) - dC2;
      return Math.sqrt(
        dL2 / Math.pow(kL, 2) + dC2 / Math.pow(1 + K1 * cStd, 2) + dH2 / Math.pow(1 + K2 * cStd, 2)
      );
    };
  };
  var differenceCiede2000 = (Kl = 1, Kc = 1, Kh = 1) => {
    let lab2 = converter_default("lab65");
    return (std, smp) => {
      let LabStd = lab2(std);
      let LabSmp = lab2(smp);
      let lStd = LabStd.l;
      let aStd = LabStd.a;
      let bStd = LabStd.b;
      let cStd = Math.sqrt(aStd * aStd + bStd * bStd);
      let lSmp = LabSmp.l;
      let aSmp = LabSmp.a;
      let bSmp = LabSmp.b;
      let cSmp = Math.sqrt(aSmp * aSmp + bSmp * bSmp);
      let cAvg = (cStd + cSmp) / 2;
      let G = 0.5 * (1 - Math.sqrt(
        Math.pow(cAvg, 7) / (Math.pow(cAvg, 7) + Math.pow(25, 7))
      ));
      let apStd = aStd * (1 + G);
      let apSmp = aSmp * (1 + G);
      let cpStd = Math.sqrt(apStd * apStd + bStd * bStd);
      let cpSmp = Math.sqrt(apSmp * apSmp + bSmp * bSmp);
      let hpStd = Math.abs(apStd) + Math.abs(bStd) === 0 ? 0 : Math.atan2(bStd, apStd);
      hpStd += (hpStd < 0) * 2 * Math.PI;
      let hpSmp = Math.abs(apSmp) + Math.abs(bSmp) === 0 ? 0 : Math.atan2(bSmp, apSmp);
      hpSmp += (hpSmp < 0) * 2 * Math.PI;
      let dL = lSmp - lStd;
      let dC = cpSmp - cpStd;
      let dhp = cpStd * cpSmp === 0 ? 0 : hpSmp - hpStd;
      dhp -= (dhp > Math.PI) * 2 * Math.PI;
      dhp += (dhp < -Math.PI) * 2 * Math.PI;
      let dH = 2 * Math.sqrt(cpStd * cpSmp) * Math.sin(dhp / 2);
      let Lp = (lStd + lSmp) / 2;
      let Cp = (cpStd + cpSmp) / 2;
      let hp;
      if (cpStd * cpSmp === 0) {
        hp = hpStd + hpSmp;
      } else {
        hp = (hpStd + hpSmp) / 2;
        hp -= (Math.abs(hpStd - hpSmp) > Math.PI) * Math.PI;
        hp += (hp < 0) * 2 * Math.PI;
      }
      let Lpm50 = Math.pow(Lp - 50, 2);
      let T = 1 - 0.17 * Math.cos(hp - Math.PI / 6) + 0.24 * Math.cos(2 * hp) + 0.32 * Math.cos(3 * hp + Math.PI / 30) - 0.2 * Math.cos(4 * hp - 63 * Math.PI / 180);
      let Sl = 1 + 0.015 * Lpm50 / Math.sqrt(20 + Lpm50);
      let Sc = 1 + 0.045 * Cp;
      let Sh = 1 + 0.015 * Cp * T;
      let deltaTheta = 30 * Math.PI / 180 * Math.exp(-1 * Math.pow((180 / Math.PI * hp - 275) / 25, 2));
      let Rc = 2 * Math.sqrt(Math.pow(Cp, 7) / (Math.pow(Cp, 7) + Math.pow(25, 7)));
      let Rt = -1 * Math.sin(2 * deltaTheta) * Rc;
      return Math.sqrt(
        Math.pow(dL / (Kl * Sl), 2) + Math.pow(dC / (Kc * Sc), 2) + Math.pow(dH / (Kh * Sh), 2) + Rt * dC / (Kc * Sc) * dH / (Kh * Sh)
      );
    };
  };
  var differenceCmc = (l = 1, c4 = 1) => {
    let lab2 = converter_default("lab65");
    return (std, smp) => {
      let LabStd = lab2(std);
      let lStd = LabStd.l;
      let aStd = LabStd.a;
      let bStd = LabStd.b;
      let cStd = Math.sqrt(aStd * aStd + bStd * bStd);
      let hStd = Math.atan2(bStd, aStd);
      hStd = hStd + 2 * Math.PI * (hStd < 0);
      let LabSmp = lab2(smp);
      let lSmp = LabSmp.l;
      let aSmp = LabSmp.a;
      let bSmp = LabSmp.b;
      let cSmp = Math.sqrt(aSmp * aSmp + bSmp * bSmp);
      let dL2 = Math.pow(lStd - lSmp, 2);
      let dC2 = Math.pow(cStd - cSmp, 2);
      let dH2 = Math.pow(aStd - aSmp, 2) + Math.pow(bStd - bSmp, 2) - dC2;
      let F = Math.sqrt(Math.pow(cStd, 4) / (Math.pow(cStd, 4) + 1900));
      let T = hStd >= 164 / 180 * Math.PI && hStd <= 345 / 180 * Math.PI ? 0.56 + Math.abs(0.2 * Math.cos(hStd + 168 / 180 * Math.PI)) : 0.36 + Math.abs(0.4 * Math.cos(hStd + 35 / 180 * Math.PI));
      let Sl = lStd < 16 ? 0.511 : 0.040975 * lStd / (1 + 0.01765 * lStd);
      let Sc = 0.0638 * cStd / (1 + 0.0131 * cStd) + 0.638;
      let Sh = Sc * (F * T + 1 - F);
      return Math.sqrt(
        dL2 / Math.pow(l * Sl, 2) + dC2 / Math.pow(c4 * Sc, 2) + dH2 / Math.pow(Sh, 2)
      );
    };
  };
  var differenceHyab = () => {
    let lab2 = converter_default("lab65");
    return (std, smp) => {
      let LabStd = lab2(std);
      let LabSmp = lab2(smp);
      let dL = LabStd.l - LabSmp.l;
      let dA = LabStd.a - LabSmp.a;
      let dB = LabStd.b - LabSmp.b;
      return Math.abs(dL) + Math.sqrt(dA * dA + dB * dB);
    };
  };
  var differenceKotsarenkoRamos = () => differenceEuclidean("yiq", [0.5053, 0.299, 0.1957]);

// src/average.js
  var averageAngle = (val) => {
    let sum = val.reduce(
      (sum2, val2) => {
        if (val2 !== void 0) {
          let rad = val2 * Math.PI / 180;
          sum2.sin += Math.sin(rad);
          sum2.cos += Math.cos(rad);
        }
        return sum2;
      },
      { sin: 0, cos: 0 }
    );
    return Math.atan2(sum.sin, sum.cos) * 180 / Math.PI;
  };
  var averageNumber = (val) => {
    let a = val.filter((v) => v !== void 0);
    return a.length ? a.reduce((sum, v) => sum + v, 0) / a.length : void 0;
  };
  var isfn = (o) => typeof o === "function";
  function average(colors, mode = "rgb", overrides) {
    let def = getMode(mode);
    let cc = colors.map(converter_default(mode));
    return def.channels.reduce(
      (res, ch) => {
        let arr = cc.map((c4) => c4[ch]).filter((val) => val !== void 0);
        if (arr.length) {
          let fn5;
          if (isfn(overrides)) {
            fn5 = overrides;
          } else if (overrides && isfn(overrides[ch])) {
            fn5 = overrides[ch];
          } else if (def.average && isfn(def.average[ch])) {
            fn5 = def.average[ch];
          } else {
            fn5 = averageNumber;
          }
          res[ch] = fn5(arr, ch);
        }
        return res;
      },
      { mode }
    );
  }

// src/cubehelix/definition.js
  var definition3 = {
    mode: "cubehelix",
    channels: ["h", "s", "l", "alpha"],
    parse: ["--cubehelix"],
    serialize: "--cubehelix",
    ranges: {
      h: [0, 360],
      s: [0, 4.614],
      l: [0, 1]
    },
    fromMode: {
      rgb: convertRgbToCubehelix_default
    },
    toMode: {
      rgb: convertCubehelixToRgb_default
    },
    interpolate: {
      h: {
        use: interpolatorLinear,
        fixup: fixupHueShorter
      },
      s: interpolatorLinear,
      l: interpolatorLinear,
      alpha: {
        use: interpolatorLinear,
        fixup: fixupAlpha
      }
    },
    difference: {
      h: differenceHueSaturation
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default3 = definition3;

// src/lch/convertLabToLch.js
  var convertLabToLch = ({ l, a, b, alpha }, mode = "lch") => {
    let c4 = Math.sqrt(a * a + b * b);
    let res = { mode, l, c: c4 };
    if (c4)
      res.h = normalizeHue_default(Math.atan2(b, a) * 180 / Math.PI);
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertLabToLch_default = convertLabToLch;

// src/lch/convertLchToLab.js
  var convertLchToLab = ({ l, c: c4, h, alpha }, mode = "lab") => {
    let res = {
      mode,
      l,
      a: c4 ? c4 * Math.cos(h / 180 * Math.PI) : 0,
      b: c4 ? c4 * Math.sin(h / 180 * Math.PI) : 0
    };
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertLchToLab_default = convertLchToLab;

// src/xyz65/constants.js
  var k = Math.pow(29, 3) / Math.pow(3, 3);
  var e = Math.pow(6, 3) / Math.pow(29, 3);

// src/constants.js
  var D50 = {
    X: 0.3457 / 0.3585,
    Y: 1,
    Z: (1 - 0.3457 - 0.3585) / 0.3585
  };
  var D65 = {
    X: 0.3127 / 0.329,
    Y: 1,
    Z: (1 - 0.3127 - 0.329) / 0.329
  };
  var k2 = Math.pow(29, 3) / Math.pow(3, 3);
  var e2 = Math.pow(6, 3) / Math.pow(29, 3);

// src/lab65/convertLab65ToXyz65.js
  var fn3 = (v) => Math.pow(v, 3) > e ? Math.pow(v, 3) : (116 * v - 16) / k;
  var convertLab65ToXyz65 = ({ l, a, b, alpha }) => {
    let fy = (l + 16) / 116;
    let fx = a / 500 + fy;
    let fz = fy - b / 200;
    let res = {
      mode: "xyz65",
      x: fn3(fx) * D65.X,
      y: fn3(fy) * D65.Y,
      z: fn3(fz) * D65.Z
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertLab65ToXyz65_default = convertLab65ToXyz65;

// src/lab65/convertLab65ToRgb.js
  var convertLab65ToRgb = (lab2) => convertXyz65ToRgb_default(convertLab65ToXyz65_default(lab2));
  var convertLab65ToRgb_default = convertLab65ToRgb;

// src/lab65/convertXyz65ToLab65.js
  var f = (value) => value > e ? Math.cbrt(value) : (k * value + 16) / 116;
  var convertXyz65ToLab65 = ({ x, y, z, alpha }) => {
    let f0 = f(x / D65.X);
    let f1 = f(y / D65.Y);
    let f22 = f(z / D65.Z);
    let res = {
      mode: "lab65",
      l: 116 * f1 - 16,
      a: 500 * (f0 - f1),
      b: 200 * (f1 - f22)
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz65ToLab65_default = convertXyz65ToLab65;

// src/lab65/convertRgbToLab65.js
  var convertRgbToLab65 = (rgb4) => {
    let res = convertXyz65ToLab65_default(convertRgbToXyz65_default(rgb4));
    if (rgb4.r === rgb4.b && rgb4.b === rgb4.g) {
      res.a = res.b = 0;
    }
    return res;
  };
  var convertRgbToLab65_default = convertRgbToLab65;

// src/dlch/constants.js
  var kE = 1;
  var kCH = 1;
  var \u03B8 = 26 / 180 * Math.PI;
  var cos\u03B8 = Math.cos(\u03B8);
  var sin\u03B8 = Math.sin(\u03B8);
  var factor = 100 / Math.log(139 / 100);

// src/dlch/convertDlchToLab65.js
  var convertDlchToLab65 = ({ l, c: c4, h, alpha }) => {
    let res = {
      mode: "lab65",
      l: (Math.exp(l * kE / factor) - 1) / 39e-4
    };
    if (h === void 0) {
      res.a = res.b = 0;
    } else {
      let G = (Math.exp(0.0435 * c4 * kCH * kE) - 1) / 0.075;
      let e4 = G * Math.cos(h / 180 * Math.PI - \u03B8);
      let f3 = G * Math.sin(h / 180 * Math.PI - \u03B8);
      res.a = e4 * cos\u03B8 - f3 / 0.83 * sin\u03B8;
      res.b = e4 * sin\u03B8 + f3 / 0.83 * cos\u03B8;
    }
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertDlchToLab65_default = convertDlchToLab65;

// src/dlch/convertLab65ToDlch.js
  var convertLab65ToDlch = ({ l, a, b, alpha }) => {
    let e4 = a * cos\u03B8 + b * sin\u03B8;
    let f3 = 0.83 * (b * cos\u03B8 - a * sin\u03B8);
    let G = Math.sqrt(e4 * e4 + f3 * f3);
    let res = {
      mode: "dlch",
      l: factor / kE * Math.log(1 + 39e-4 * l),
      c: Math.log(1 + 0.075 * G) / (0.0435 * kCH * kE)
    };
    if (res.c) {
      res.h = normalizeHue_default((Math.atan2(f3, e4) + \u03B8) / Math.PI * 180);
    }
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertLab65ToDlch_default = convertLab65ToDlch;

// src/dlab/definition.js
  var convertDlabToLab65 = (c4) => convertDlchToLab65_default(convertLabToLch_default(c4, "dlch"));
  var convertLab65ToDlab = (c4) => convertLchToLab_default(convertLab65ToDlch_default(c4), "dlab");
  var definition4 = {
    mode: "dlab",
    parse: ["--din99o-lab"],
    serialize: "--din99o-lab",
    toMode: {
      lab65: convertDlabToLab65,
      rgb: (c4) => convertLab65ToRgb_default(convertDlabToLab65(c4))
    },
    fromMode: {
      lab65: convertLab65ToDlab,
      rgb: (c4) => convertLab65ToDlab(convertRgbToLab65_default(c4))
    },
    channels: ["l", "a", "b", "alpha"],
    ranges: {
      l: [0, 100],
      a: [-40.09, 45.501],
      b: [-40.469, 44.344]
    },
    interpolate: {
      l: interpolatorLinear,
      a: interpolatorLinear,
      b: interpolatorLinear,
      alpha: {
        use: interpolatorLinear,
        fixup: fixupAlpha
      }
    }
  };
  var definition_default4 = definition4;

// src/dlch/definition.js
  var definition5 = {
    mode: "dlch",
    parse: ["--din99o-lch"],
    serialize: "--din99o-lch",
    toMode: {
      lab65: convertDlchToLab65_default,
      dlab: (c4) => convertLchToLab_default(c4, "dlab"),
      rgb: (c4) => convertLab65ToRgb_default(convertDlchToLab65_default(c4))
    },
    fromMode: {
      lab65: convertLab65ToDlch_default,
      dlab: (c4) => convertLabToLch_default(c4, "dlch"),
      rgb: (c4) => convertLab65ToDlch_default(convertRgbToLab65_default(c4))
    },
    channels: ["l", "c", "h", "alpha"],
    ranges: {
      l: [0, 100],
      c: [0, 51.484],
      h: [0, 360]
    },
    interpolate: {
      l: interpolatorLinear,
      c: interpolatorLinear,
      h: {
        use: interpolatorLinear,
        fixup: fixupHueShorter
      },
      alpha: {
        use: interpolatorLinear,
        fixup: fixupAlpha
      }
    },
    difference: {
      h: differenceHueChroma
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default5 = definition5;

// src/hsi/convertHsiToRgb.js
  function convertHsiToRgb({ h, s, i, alpha }) {
    h = normalizeHue_default(h);
    let f3 = Math.abs(h / 60 % 2 - 1);
    let res;
    switch (Math.floor(h / 60)) {
      case 0:
        res = {
          r: i * (1 + s * (3 / (2 - f3) - 1)),
          g: i * (1 + s * (3 * (1 - f3) / (2 - f3) - 1)),
          b: i * (1 - s)
        };
        break;
      case 1:
        res = {
          r: i * (1 + s * (3 * (1 - f3) / (2 - f3) - 1)),
          g: i * (1 + s * (3 / (2 - f3) - 1)),
          b: i * (1 - s)
        };
        break;
      case 2:
        res = {
          r: i * (1 - s),
          g: i * (1 + s * (3 / (2 - f3) - 1)),
          b: i * (1 + s * (3 * (1 - f3) / (2 - f3) - 1))
        };
        break;
      case 3:
        res = {
          r: i * (1 - s),
          g: i * (1 + s * (3 * (1 - f3) / (2 - f3) - 1)),
          b: i * (1 + s * (3 / (2 - f3) - 1))
        };
        break;
      case 4:
        res = {
          r: i * (1 + s * (3 * (1 - f3) / (2 - f3) - 1)),
          g: i * (1 - s),
          b: i * (1 + s * (3 / (2 - f3) - 1))
        };
        break;
      case 5:
        res = {
          r: i * (1 + s * (3 / (2 - f3) - 1)),
          g: i * (1 - s),
          b: i * (1 + s * (3 * (1 - f3) / (2 - f3) - 1))
        };
        break;
      default:
        res = { r: i * (1 - s), g: i * (1 - s), b: i * (1 - s) };
    }
    res.mode = "rgb";
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  }

// src/hsi/convertRgbToHsi.js
  function convertRgbToHsi({ r: r2, g, b, alpha }) {
    let M2 = Math.max(r2, g, b), m = Math.min(r2, g, b);
    let res = {
      mode: "hsi",
      s: r2 + g + b === 0 ? 0 : 1 - 3 * m / (r2 + g + b),
      i: (r2 + g + b) / 3
    };
    if (M2 - m !== 0)
      res.h = (M2 === r2 ? (g - b) / (M2 - m) + (g < b) * 6 : M2 === g ? (b - r2) / (M2 - m) + 2 : (r2 - g) / (M2 - m) + 4) * 60;
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  }

// src/hsi/definition.js
  var definition6 = {
    mode: "hsi",
    toMode: {
      rgb: convertHsiToRgb
    },
    parse: ["--hsi"],
    serialize: "--hsi",
    fromMode: {
      rgb: convertRgbToHsi
    },
    channels: ["h", "s", "i", "alpha"],
    ranges: {
      h: [0, 360]
    },
    gamut: "rgb",
    interpolate: {
      h: { use: interpolatorLinear, fixup: fixupHueShorter },
      s: interpolatorLinear,
      i: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    },
    difference: {
      h: differenceHueSaturation
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default6 = definition6;

// src/hsl/convertHslToRgb.js
  function convertHslToRgb({ h, s, l, alpha }) {
    h = normalizeHue_default(h);
    let m1 = l + s * (l < 0.5 ? l : 1 - l);
    let m2 = m1 - (m1 - l) * 2 * Math.abs(h / 60 % 2 - 1);
    let res;
    switch (Math.floor(h / 60)) {
      case 0:
        res = { r: m1, g: m2, b: 2 * l - m1 };
        break;
      case 1:
        res = { r: m2, g: m1, b: 2 * l - m1 };
        break;
      case 2:
        res = { r: 2 * l - m1, g: m1, b: m2 };
        break;
      case 3:
        res = { r: 2 * l - m1, g: m2, b: m1 };
        break;
      case 4:
        res = { r: m2, g: 2 * l - m1, b: m1 };
        break;
      case 5:
        res = { r: m1, g: 2 * l - m1, b: m2 };
        break;
      default:
        res = { r: 2 * l - m1, g: 2 * l - m1, b: 2 * l - m1 };
    }
    res.mode = "rgb";
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  }

// src/hsl/convertRgbToHsl.js
  function convertRgbToHsl({ r: r2, g, b, alpha }) {
    let M2 = Math.max(r2, g, b), m = Math.min(r2, g, b);
    let res = {
      mode: "hsl",
      s: M2 === m ? 0 : (M2 - m) / (1 - Math.abs(M2 + m - 1)),
      l: 0.5 * (M2 + m)
    };
    if (M2 - m !== 0)
      res.h = (M2 === r2 ? (g - b) / (M2 - m) + (g < b) * 6 : M2 === g ? (b - r2) / (M2 - m) + 2 : (r2 - g) / (M2 - m) + 4) * 60;
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  }

// src/util/hue.js
  var hueToDeg = (val, unit) => {
    switch (unit) {
      case "deg":
        return +val;
      case "rad":
        return val / Math.PI * 180;
      case "grad":
        return val / 10 * 9;
      case "turn":
        return val * 360;
    }
  };
  var hue_default = hueToDeg;

// src/hsl/parseHslLegacy.js
  var hsl_old = new RegExp(
    `^hsla?\$\\s*${hue}${c}${per}${c}${per}\\s*(?:,\\s*${num_per}\\s*)?\$$`
  );
  var parseHslLegacy = (color) => {
    let match = color.match(hsl_old);
    if (!match)
      return;
    let res = { mode: "hsl" };
    if (match[3] !== void 0) {
      res.h = +match[3];
    } else if (match[1] !== void 0 && match[2] !== void 0) {
      res.h = hue_default(match[1], match[2]);
    }
    if (match[4] !== void 0) {
      res.s = Math.min(Math.max(0, match[4] / 100), 1);
    }
    if (match[5] !== void 0) {
      res.l = Math.min(Math.max(0, match[5] / 100), 1);
    }
    if (match[6] !== void 0) {
      res.alpha = match[6] / 100;
    } else if (match[7] !== void 0) {
      res.alpha = +match[7];
    }
    return res;
  };
  var parseHslLegacy_default = parseHslLegacy;

// src/hsl/parseHsl.js
  function parseHsl(color, parsed) {
    if (!parsed || parsed[0] !== "hsl" && parsed[0] !== "hsla") {
      return void 0;
    }
    const res = { mode: "hsl" };
    const [, h, s, l, alpha] = parsed;
    if (h.type !== Tok.None) {
      if (h.type === Tok.Percentage) {
        return void 0;
      }
      res.h = h.value;
    }
    if (s.type !== Tok.None) {
      if (s.type === Tok.Hue) {
        return void 0;
      }
      res.s = s.type === Tok.Number ? s.value : s.value / 100;
    }
    if (l.type !== Tok.None) {
      if (l.type === Tok.Hue) {
        return void 0;
      }
      res.l = l.type === Tok.Number ? l.value : l.value / 100;
    }
    if (alpha.type !== Tok.None) {
      res.alpha = alpha.type === Tok.Number ? alpha.value : alpha.value / 100;
    }
    return res;
  }
  var parseHsl_default = parseHsl;

// src/hsl/definition.js
  var definition7 = {
    mode: "hsl",
    toMode: {
      rgb: convertHslToRgb
    },
    fromMode: {
      rgb: convertRgbToHsl
    },
    channels: ["h", "s", "l", "alpha"],
    ranges: {
      h: [0, 360]
    },
    gamut: "rgb",
    parse: [parseHsl_default, parseHslLegacy_default],
    serialize: (c4) => `hsl(${c4.h || 0} ${c4.s !== void 0 ? c4.s * 100 + "%" : "none"} ${c4.l !== void 0 ? c4.l * 100 + "%" : "none"}${c4.alpha < 1 ? ` / ${c4.alpha}` : ""})`,
    interpolate: {
      h: { use: interpolatorLinear, fixup: fixupHueShorter },
      s: interpolatorLinear,
      l: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    },
    difference: {
      h: differenceHueSaturation
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default7 = definition7;

// src/hsv/convertHsvToRgb.js
  function convertHsvToRgb({ h, s, v, alpha }) {
    h = normalizeHue_default(h);
    let f3 = Math.abs(h / 60 % 2 - 1);
    let res;
    switch (Math.floor(h / 60)) {
      case 0:
        res = { r: v, g: v * (1 - s * f3), b: v * (1 - s) };
        break;
      case 1:
        res = { r: v * (1 - s * f3), g: v, b: v * (1 - s) };
        break;
      case 2:
        res = { r: v * (1 - s), g: v, b: v * (1 - s * f3) };
        break;
      case 3:
        res = { r: v * (1 - s), g: v * (1 - s * f3), b: v };
        break;
      case 4:
        res = { r: v * (1 - s * f3), g: v * (1 - s), b: v };
        break;
      case 5:
        res = { r: v, g: v * (1 - s), b: v * (1 - s * f3) };
        break;
      default:
        res = { r: v * (1 - s), g: v * (1 - s), b: v * (1 - s) };
    }
    res.mode = "rgb";
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  }

// src/hsv/convertRgbToHsv.js
  function convertRgbToHsv({ r: r2, g, b, alpha }) {
    let M2 = Math.max(r2, g, b), m = Math.min(r2, g, b);
    let res = {
      mode: "hsv",
      s: M2 === 0 ? 0 : 1 - m / M2,
      v: M2
    };
    if (M2 - m !== 0)
      res.h = (M2 === r2 ? (g - b) / (M2 - m) + (g < b) * 6 : M2 === g ? (b - r2) / (M2 - m) + 2 : (r2 - g) / (M2 - m) + 4) * 60;
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  }

// src/hsv/definition.js
  var definition8 = {
    mode: "hsv",
    toMode: {
      rgb: convertHsvToRgb
    },
    parse: ["--hsv"],
    serialize: "--hsv",
    fromMode: {
      rgb: convertRgbToHsv
    },
    channels: ["h", "s", "v", "alpha"],
    ranges: {
      h: [0, 360]
    },
    gamut: "rgb",
    interpolate: {
      h: { use: interpolatorLinear, fixup: fixupHueShorter },
      s: interpolatorLinear,
      v: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    },
    difference: {
      h: differenceHueSaturation
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default8 = definition8;

// src/hwb/convertHwbToRgb.js
  function convertHwbToRgb({ h, w, b, alpha }) {
    if (w + b > 1) {
      let s = w + b;
      w /= s;
      b /= s;
    }
    return convertHsvToRgb({
      h,
      s: b === 1 ? 1 : 1 - w / (1 - b),
      v: 1 - b,
      alpha
    });
  }

// src/hwb/convertRgbToHwb.js
  function convertRgbToHwb(rgba) {
    let hsv2 = convertRgbToHsv(rgba);
    if (hsv2 === void 0)
      return void 0;
    let res = {
      mode: "hwb",
      w: (1 - hsv2.s) * hsv2.v,
      b: 1 - hsv2.v
    };
    if (hsv2.h !== void 0)
      res.h = hsv2.h;
    if (hsv2.alpha !== void 0)
      res.alpha = hsv2.alpha;
    return res;
  }

// src/hwb/parseHwb.js
  function ParseHwb(color, parsed) {
    if (!parsed || parsed[0] !== "hwb") {
      return void 0;
    }
    const res = { mode: "hwb" };
    const [, h, w, b, alpha] = parsed;
    if (h.type !== Tok.None) {
      if (h.type === Tok.Percentage) {
        return void 0;
      }
      res.h = h.value;
    }
    if (w.type !== Tok.None) {
      if (w.type === Tok.Hue) {
        return void 0;
      }
      res.w = w.type === Tok.Number ? w.value : w.value / 100;
    }
    if (b.type !== Tok.None) {
      if (b.type === Tok.Hue) {
        return void 0;
      }
      res.b = b.type === Tok.Number ? b.value : b.value / 100;
    }
    if (alpha.type !== Tok.None) {
      res.alpha = alpha.type === Tok.Number ? alpha.value : alpha.value / 100;
    }
    return res;
  }
  var parseHwb_default = ParseHwb;

// src/hwb/definition.js
  var definition9 = {
    mode: "hwb",
    toMode: {
      rgb: convertHwbToRgb
    },
    fromMode: {
      rgb: convertRgbToHwb
    },
    channels: ["h", "w", "b", "alpha"],
    ranges: {
      h: [0, 360]
    },
    gamut: "rgb",
    parse: [parseHwb_default],
    serialize: (c4) => `hwb(${c4.h || 0} ${c4.w * 100}% ${c4.b * 100}%${c4.alpha < 1 ? ` / ${c4.alpha}` : ""})`,
    interpolate: {
      h: { use: interpolatorLinear, fixup: fixupHueShorter },
      w: interpolatorLinear,
      b: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    },
    difference: {
      h: differenceHueNaive
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default9 = definition9;

// src/jab/convertXyz65ToJab.js
  var n = 0.1593017578125;
  var p = 134.03437499999998;
  var c1 = 0.8359375;
  var c2 = 18.8515625;
  var c3 = 18.6875;
  var d0 = 16295499532821565e-27;
  var pq = (v) => {
    let vn3 = Math.pow(v / 1e4, n);
    return Math.pow((c1 + c2 * vn3) / (1 + c3 * vn3), p) || 0;
  };
  var abs = (v) => Math.max(v * 203, 0);
  var convertXyz65ToJab = ({ x, y, z, alpha }) => {
    x = abs(x);
    y = abs(y);
    z = abs(z);
    let xp = 1.15 * x - 0.15 * z;
    let yp = 0.66 * y + 0.34 * x;
    let l = pq(0.41478972 * xp + 0.579999 * yp + 0.014648 * z);
    let m = pq(-0.20151 * xp + 1.120649 * yp + 0.0531008 * z);
    let s = pq(-0.0166008 * xp + 0.2648 * yp + 0.6684799 * z);
    let i = (l + m) / 2;
    let res = {
      mode: "jab",
      j: 0.44 * i / (1 - 0.56 * i) - d0,
      a: 3.524 * l - 4.066708 * m + 0.542708 * s,
      b: 0.199076 * l + 1.096799 * m - 1.295875 * s
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz65ToJab_default = convertXyz65ToJab;

// src/jab/convertJabToXyz65.js
  var n2 = 0.1593017578125;
  var p2 = 134.03437499999998;
  var c12 = 0.8359375;
  var c22 = 18.8515625;
  var c32 = 18.6875;
  var d02 = 16295499532821565e-27;
  var pq_inv = (v) => {
    let vp = Math.pow(v, 1 / p2);
    return 1e4 * Math.pow((c12 - vp) / (c32 * vp - c22), 1 / n2) || 0;
  };
  var rel = (v) => v / 203;
  var convertJabToXyz65 = ({ j, a, b, alpha }) => {
    let i = (j + d02) / (0.44 + 0.56 * (j + d02));
    let l = pq_inv(i + 0.13860504 * a + 0.058047316 * b);
    let m = pq_inv(i - 0.13860504 * a - 0.058047316 * b);
    let s = pq_inv(i - 0.096019242 * a - 0.8118919 * b);
    let res = {
      mode: "xyz65",
      x: rel(
        1.661373024652174 * l - 0.914523081304348 * m + 0.23136208173913045 * s
      ),
      y: rel(
        -0.3250758611844533 * l + 1.571847026732543 * m - 0.21825383453227928 * s
      ),
      z: rel(-0.090982811 * l - 0.31272829 * m + 1.5227666 * s)
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertJabToXyz65_default = convertJabToXyz65;

// src/jab/convertRgbToJab.js
  var convertRgbToJab = (rgb4) => {
    let res = convertXyz65ToJab_default(convertRgbToXyz65_default(rgb4));
    if (rgb4.r === rgb4.b && rgb4.b === rgb4.g) {
      res.a = res.b = 0;
    }
    return res;
  };
  var convertRgbToJab_default = convertRgbToJab;

// src/jab/convertJabToRgb.js
  var convertJabToRgb = (color) => convertXyz65ToRgb_default(convertJabToXyz65_default(color));
  var convertJabToRgb_default = convertJabToRgb;

// src/jab/definition.js
  var definition10 = {
    mode: "jab",
    channels: ["j", "a", "b", "alpha"],
    parse: ["--jzazbz"],
    serialize: "--jzazbz",
    fromMode: {
      rgb: convertRgbToJab_default,
      xyz65: convertXyz65ToJab_default
    },
    toMode: {
      rgb: convertJabToRgb_default,
      xyz65: convertJabToXyz65_default
    },
    ranges: {
      j: [0, 0.222],
      a: [-0.109, 0.129],
      b: [-0.185, 0.134]
    },
    interpolate: {
      j: interpolatorLinear,
      a: interpolatorLinear,
      b: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    }
  };
  var definition_default10 = definition10;

// src/jch/convertJabToJch.js
  var convertJabToJch = ({ j, a, b, alpha }) => {
    let c4 = Math.sqrt(a * a + b * b);
    let res = {
      mode: "jch",
      j,
      c: c4
    };
    if (c4) {
      res.h = normalizeHue_default(Math.atan2(b, a) * 180 / Math.PI);
    }
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertJabToJch_default = convertJabToJch;

// src/jch/convertJchToJab.js
  var convertJchToJab = ({ j, c: c4, h, alpha }) => {
    let res = {
      mode: "jab",
      j,
      a: c4 ? c4 * Math.cos(h / 180 * Math.PI) : 0,
      b: c4 ? c4 * Math.sin(h / 180 * Math.PI) : 0
    };
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertJchToJab_default = convertJchToJab;

// src/jch/definition.js
  var definition11 = {
    mode: "jch",
    parse: ["--jzczhz"],
    serialize: "--jzczhz",
    toMode: {
      jab: convertJchToJab_default,
      rgb: (c4) => convertJabToRgb_default(convertJchToJab_default(c4))
    },
    fromMode: {
      rgb: (c4) => convertJabToJch_default(convertRgbToJab_default(c4)),
      jab: convertJabToJch_default
    },
    channels: ["j", "c", "h", "alpha"],
    ranges: {
      j: [0, 0.221],
      c: [0, 0.19],
      h: [0, 360]
    },
    interpolate: {
      h: { use: interpolatorLinear, fixup: fixupHueShorter },
      c: interpolatorLinear,
      j: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    },
    difference: {
      h: differenceHueChroma
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default11 = definition11;

// src/xyz50/constants.js
  var k3 = Math.pow(29, 3) / Math.pow(3, 3);
  var e3 = Math.pow(6, 3) / Math.pow(29, 3);

// src/lab/convertLabToXyz50.js
  var fn4 = (v) => Math.pow(v, 3) > e3 ? Math.pow(v, 3) : (116 * v - 16) / k3;
  var convertLabToXyz50 = ({ l, a, b, alpha }) => {
    let fy = (l + 16) / 116;
    let fx = a / 500 + fy;
    let fz = fy - b / 200;
    let res = {
      mode: "xyz50",
      x: fn4(fx) * D50.X,
      y: fn4(fy) * D50.Y,
      z: fn4(fz) * D50.Z
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertLabToXyz50_default = convertLabToXyz50;

// src/xyz50/convertXyz50ToRgb.js
  var convertXyz50ToRgb = ({ x, y, z, alpha }) => {
    let res = convertLrgbToRgb_default({
      r: x * 3.1341359569958707 - y * 1.6173863321612538 - 0.4906619460083532 * z,
      g: x * -0.978795502912089 + y * 1.916254567259524 + 0.03344273116131949 * z,
      b: x * 0.07195537988411677 - y * 0.2289768264158322 + 1.405386058324125 * z
    });
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz50ToRgb_default = convertXyz50ToRgb;

// src/lab/convertLabToRgb.js
  var convertLabToRgb = (lab2) => convertXyz50ToRgb_default(convertLabToXyz50_default(lab2));
  var convertLabToRgb_default = convertLabToRgb;

// src/xyz50/convertRgbToXyz50.js
  var convertRgbToXyz50 = (rgb4) => {
    let { r: r2, g, b, alpha } = convertRgbToLrgb_default(rgb4);
    let res = {
      mode: "xyz50",
      x: 0.436065742824811 * r2 + 0.3851514688337912 * g + 0.14307845442264197 * b,
      y: 0.22249319175623702 * r2 + 0.7168870538238823 * g + 0.06061979053616537 * b,
      z: 0.013923904500943465 * r2 + 0.09708128566574634 * g + 0.7140993584005155 * b
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertRgbToXyz50_default = convertRgbToXyz50;

// src/lab/convertXyz50ToLab.js
  var f2 = (value) => value > e3 ? Math.cbrt(value) : (k3 * value + 16) / 116;
  var convertXyz50ToLab = ({ x, y, z, alpha }) => {
    let f0 = f2(x / D50.X);
    let f1 = f2(y / D50.Y);
    let f22 = f2(z / D50.Z);
    let res = {
      mode: "lab",
      l: 116 * f1 - 16,
      a: 500 * (f0 - f1),
      b: 200 * (f1 - f22)
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz50ToLab_default = convertXyz50ToLab;

// src/lab/convertRgbToLab.js
  var convertRgbToLab = (rgb4) => {
    let res = convertXyz50ToLab_default(convertRgbToXyz50_default(rgb4));
    if (rgb4.r === rgb4.b && rgb4.b === rgb4.g) {
      res.a = res.b = 0;
    }
    return res;
  };
  var convertRgbToLab_default = convertRgbToLab;

// src/lab/parseLab.js
  function parseLab(color, parsed) {
    if (!parsed || parsed[0] !== "lab") {
      return void 0;
    }
    const res = { mode: "lab" };
    const [, l, a, b, alpha] = parsed;
    if (l.type === Tok.Hue || a.type === Tok.Hue || b.type === Tok.Hue) {
      return void 0;
    }
    if (l.type !== Tok.None) {
      res.l = l.value;
    }
    if (a.type !== Tok.None) {
      res.a = a.type === Tok.Number ? a.value : a.value * 125 / 100;
    }
    if (b.type !== Tok.None) {
      res.b = b.type === Tok.Number ? b.value : b.value * 125 / 100;
    }
    if (alpha.type !== Tok.None) {
      res.alpha = alpha.type === Tok.Number ? alpha.value : alpha.value / 100;
    }
    return res;
  }
  var parseLab_default = parseLab;

// src/lab/definition.js
  var definition12 = {
    mode: "lab",
    toMode: {
      xyz50: convertLabToXyz50_default,
      rgb: convertLabToRgb_default
    },
    fromMode: {
      xyz50: convertXyz50ToLab_default,
      rgb: convertRgbToLab_default
    },
    channels: ["l", "a", "b", "alpha"],
    ranges: {
      l: [0, 100],
      a: [-100, 100],
      b: [-100, 100]
    },
    parse: [parseLab_default],
    serialize: (c4) => `lab(${c4.l !== void 0 ? c4.l : "none"} ${c4.a !== void 0 ? c4.a : "none"} ${c4.b !== void 0 ? c4.b : "none"}${c4.alpha < 1 ? ` / ${c4.alpha}` : ""})`,
    interpolate: {
      l: interpolatorLinear,
      a: interpolatorLinear,
      b: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    }
  };
  var definition_default12 = definition12;

// src/lab65/definition.js
  var definition13 = {
    ...definition_default12,
    mode: "lab65",
    parse: ["--lab-d65"],
    serialize: "--lab-d65",
    toMode: {
      xyz65: convertLab65ToXyz65_default,
      rgb: convertLab65ToRgb_default
    },
    fromMode: {
      xyz65: convertXyz65ToLab65_default,
      rgb: convertRgbToLab65_default
    },
    ranges: {
      l: [0, 100],
      a: [-86.182, 98.234],
      b: [-107.86, 94.477]
    }
  };
  var definition_default13 = definition13;

// src/lch/parseLch.js
  function parseLch(color, parsed) {
    if (!parsed || parsed[0] !== "lch") {
      return void 0;
    }
    const res = { mode: "lch" };
    const [, l, c4, h, alpha] = parsed;
    if (l.type !== Tok.None) {
      if (l.type === Tok.Hue) {
        return void 0;
      }
      res.l = l.value;
    }
    if (c4.type !== Tok.None) {
      res.c = Math.max(
        0,
        c4.type === Tok.Number ? c4.value : c4.value * 150 / 100
      );
    }
    if (h.type !== Tok.None) {
      if (h.type === Tok.Percentage) {
        return void 0;
      }
      res.h = h.value;
    }
    if (alpha.type !== Tok.None) {
      res.alpha = alpha.type === Tok.Number ? alpha.value : alpha.value / 100;
    }
    return res;
  }
  var parseLch_default = parseLch;

// src/lch/definition.js
  var definition14 = {
    mode: "lch",
    toMode: {
      lab: convertLchToLab_default,
      rgb: (c4) => convertLabToRgb_default(convertLchToLab_default(c4))
    },
    fromMode: {
      rgb: (c4) => convertLabToLch_default(convertRgbToLab_default(c4)),
      lab: convertLabToLch_default
    },
    channels: ["l", "c", "h", "alpha"],
    ranges: {
      l: [0, 100],
      c: [0, 150],
      h: [0, 360]
    },
    parse: [parseLch_default],
    serialize: (c4) => `lch(${c4.l !== void 0 ? c4.l : "none"} ${c4.c !== void 0 ? c4.c : "none"} ${c4.h || 0}${c4.alpha < 1 ? ` / ${c4.alpha}` : ""})`,
    interpolate: {
      h: { use: interpolatorLinear, fixup: fixupHueShorter },
      c: interpolatorLinear,
      l: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    },
    difference: {
      h: differenceHueChroma
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default14 = definition14;

// src/lch65/definition.js
  var definition15 = {
    ...definition_default14,
    mode: "lch65",
    parse: ["--lch-d65"],
    serialize: "--lch-d65",
    toMode: {
      lab65: (c4) => convertLchToLab_default(c4, "lab65"),
      rgb: (c4) => convertLab65ToRgb_default(convertLchToLab_default(c4, "lab65"))
    },
    fromMode: {
      rgb: (c4) => convertLabToLch_default(convertRgbToLab65_default(c4), "lch65"),
      lab65: (c4) => convertLabToLch_default(c4, "lch65")
    },
    ranges: {
      l: [0, 100],
      c: [0, 133.807],
      h: [0, 360]
    }
  };
  var definition_default15 = definition15;

// src/lchuv/convertLuvToLchuv.js
  var convertLuvToLchuv = ({ l, u, v, alpha }) => {
    let c4 = Math.sqrt(u * u + v * v);
    let res = {
      mode: "lchuv",
      l,
      c: c4
    };
    if (c4) {
      res.h = normalizeHue_default(Math.atan2(v, u) * 180 / Math.PI);
    }
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertLuvToLchuv_default = convertLuvToLchuv;

// src/lchuv/convertLchuvToLuv.js
  var convertLchuvToLuv = ({ l, c: c4, h, alpha }) => {
    let res = {
      mode: "luv",
      l,
      u: c4 ? c4 * Math.cos(h / 180 * Math.PI) : 0,
      v: c4 ? c4 * Math.sin(h / 180 * Math.PI) : 0
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertLchuvToLuv_default = convertLchuvToLuv;

// src/luv/convertXyz50ToLuv.js
  var u_fn = (x, y, z) => 4 * x / (x + 15 * y + 3 * z);
  var v_fn = (x, y, z) => 9 * y / (x + 15 * y + 3 * z);
  var un = u_fn(D50.X, D50.Y, D50.Z);
  var vn = v_fn(D50.X, D50.Y, D50.Z);
  var l_fn = (value) => value <= e3 ? k3 * value : 116 * Math.cbrt(value) - 16;
  var convertXyz50ToLuv = ({ x, y, z, alpha }) => {
    let l = l_fn(y / D50.Y);
    let u = u_fn(x, y, z);
    let v = v_fn(x, y, z);
    if (!isFinite(u) || !isFinite(v)) {
      l = u = v = 0;
    } else {
      u = 13 * l * (u - un);
      v = 13 * l * (v - vn);
    }
    let res = {
      mode: "luv",
      l,
      u,
      v
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz50ToLuv_default = convertXyz50ToLuv;

// src/luv/convertLuvToXyz50.js
  var u_fn2 = (x, y, z) => 4 * x / (x + 15 * y + 3 * z);
  var v_fn2 = (x, y, z) => 9 * y / (x + 15 * y + 3 * z);
  var un2 = u_fn2(D50.X, D50.Y, D50.Z);
  var vn2 = v_fn2(D50.X, D50.Y, D50.Z);
  var convertLuvToXyz50 = ({ l, u, v, alpha }) => {
    let up = u / (13 * l) + un2;
    let vp = v / (13 * l) + vn2;
    let y = D50.Y * (l <= 8 ? l / k3 : Math.pow((l + 16) / 116, 3));
    let x = y * (9 * up) / (4 * vp);
    let z = y * (12 - 3 * up - 20 * vp) / (4 * vp);
    let res = { mode: "xyz50", x, y, z };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertLuvToXyz50_default = convertLuvToXyz50;

// src/lchuv/definition.js
  var convertRgbToLchuv = (rgb4) => convertLuvToLchuv_default(convertXyz50ToLuv_default(convertRgbToXyz50_default(rgb4)));
  var convertLchuvToRgb = (lchuv2) => convertXyz50ToRgb_default(convertLuvToXyz50_default(convertLchuvToLuv_default(lchuv2)));
  var definition16 = {
    mode: "lchuv",
    toMode: {
      luv: convertLchuvToLuv_default,
      rgb: convertLchuvToRgb
    },
    fromMode: {
      rgb: convertRgbToLchuv,
      luv: convertLuvToLchuv_default
    },
    channels: ["l", "c", "h", "alpha"],
    parse: ["--lchuv"],
    serialize: "--lchuv",
    ranges: {
      l: [0, 100],
      c: [0, 176.956],
      h: [0, 360]
    },
    interpolate: {
      h: { use: interpolatorLinear, fixup: fixupHueShorter },
      c: interpolatorLinear,
      l: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    },
    difference: {
      h: differenceHueChroma
    },
    average: {
      h: averageAngle
    }
  };
  var definition_default16 = definition16;

// src/lrgb/definition.js
  var definition17 = {
    ...definition_default,
    mode: "lrgb",
    toMode: {
      rgb: convertLrgbToRgb_default
    },
    fromMode: {
      rgb: convertRgbToLrgb_default
    },
    parse: ["srgb-linear"],
    serialize: "srgb-linear"
  };
  var definition_default17 = definition17;

// src/luv/definition.js
  var definition18 = {
    mode: "luv",
    toMode: {
      xyz50: convertLuvToXyz50_default,
      rgb: (luv2) => convertXyz50ToRgb_default(convertLuvToXyz50_default(luv2))
    },
    fromMode: {
      xyz50: convertXyz50ToLuv_default,
      rgb: (rgb4) => convertXyz50ToLuv_default(convertRgbToXyz50_default(rgb4))
    },
    channels: ["l", "u", "v", "alpha"],
    parse: ["--luv"],
    serialize: "--luv",
    ranges: {
      l: [0, 100],
      u: [-84.936, 175.042],
      v: [-125.882, 87.243]
    },
    interpolate: {
      l: interpolatorLinear,
      u: interpolatorLinear,
      v: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    }
  };
  var definition_default18 = definition18;

// src/oklab/convertLrgbToOklab.js
  var convertLrgbToOklab = ({ r: r2, g, b, alpha }) => {
    let L = Math.cbrt(
      0.41222147079999993 * r2 + 0.5363325363 * g + 0.0514459929 * b
    );
    let M2 = Math.cbrt(
      0.2119034981999999 * r2 + 0.6806995450999999 * g + 0.1073969566 * b
    );
    let S = Math.cbrt(
      0.08830246189999998 * r2 + 0.2817188376 * g + 0.6299787005000002 * b
    );
    let res = {
      mode: "oklab",
      l: 0.2104542553 * L + 0.793617785 * M2 - 0.0040720468 * S,
      a: 1.9779984951 * L - 2.428592205 * M2 + 0.4505937099 * S,
      b: 0.0259040371 * L + 0.7827717662 * M2 - 0.808675766 * S
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertLrgbToOklab_default = convertLrgbToOklab;

// src/oklab/convertRgbToOklab.js
  var convertRgbToOklab = (rgb4) => {
    let res = convertLrgbToOklab_default(convertRgbToLrgb_default(rgb4));
    if (rgb4.r === rgb4.b && rgb4.b === rgb4.g) {
      res.a = res.b = 0;
    }
    return res;
  };
  var convertRgbToOklab_default = convertRgbToOklab;

// src/oklab/convertOklabToLrgb.js
  var convertOklabToLrgb = ({ l, a, b, alpha }) => {
    let L = Math.pow(
      l * 0.9999999984505198 + 0.39633779217376786 * a + 0.2158037580607588 * b,
      3
    );
    let M2 = Math.pow(
      l * 1.0000000088817609 - 0.10556134232365635 * a - 0.06385417477170591 * b,
      3
    );
    let S = Math.pow(
      l * 1.0000000546724108 - 0.08948418209496575 * a - 1.2914855378640917 * b,
      3
    );
    let res = {
      mode: "lrgb",
      r: 4.076741661347994 * L - 3.307711590408193 * M2 + 0.230969928729428 * S,
      g: -1.2684380040921763 * L + 2.6097574006633715 * M2 - 0.3413193963102197 * S,
      b: -0.004196086541837188 * L - 0.7034186144594493 * M2 + 1.7076147009309444 * S
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertOklabToLrgb_default = convertOklabToLrgb;

// src/oklab/convertOklabToRgb.js
  var convertOklabToRgb = (c4) => convertLrgbToRgb_default(convertOklabToLrgb_default(c4));
  var convertOklabToRgb_default = convertOklabToRgb;

// src/okhsl/helpers.js
  function toe(x) {
    const k_1 = 0.206;
    const k_2 = 0.03;
    const k_3 = (1 + k_1) / (1 + k_2);
    return 0.5 * (k_3 * x - k_1 + Math.sqrt((k_3 * x - k_1) * (k_3 * x - k_1) + 4 * k_2 * k_3 * x));
  }
  function toe_inv(x) {
    const k_1 = 0.206;
    const k_2 = 0.03;
    const k_3 = (1 + k_1) / (1 + k_2);
    return (x * x + k_1 * x) / (k_3 * (x + k_2));
  }
  function compute_max_saturation(a, b) {
    let k0, k1, k22, k32, k4, wl, wm, ws;
    if (-1.88170328 * a - 0.80936493 * b > 1) {
      k0 = 1.19086277;
      k1 = 1.76576728;
      k22 = 0.59662641;
      k32 = 0.75515197;
      k4 = 0.56771245;
      wl = 4.0767416621;
      wm = -3.3077115913;
      ws = 0.2309699292;
    } else if (1.81444104 * a - 1.19445276 * b > 1) {
      k0 = 0.73956515;
      k1 = -0.45954404;
      k22 = 0.08285427;
      k32 = 0.1254107;
      k4 = 0.14503204;
      wl = -1.2684380046;
      wm = 2.6097574011;
      ws = -0.3413193965;
    } else {
      k0 = 1.35733652;
      k1 = -915799e-8;
      k22 = -1.1513021;
      k32 = -0.50559606;
      k4 = 692167e-8;
      wl = -0.0041960863;
      wm = -0.7034186147;
      ws = 1.707614701;
    }
    let S = k0 + k1 * a + k22 * b + k32 * a * a + k4 * a * b;
    let k_l = 0.3963377774 * a + 0.2158037573 * b;
    let k_m = -0.1055613458 * a - 0.0638541728 * b;
    let k_s = -0.0894841775 * a - 1.291485548 * b;
    {
      let l_ = 1 + S * k_l;
      let m_ = 1 + S * k_m;
      let s_ = 1 + S * k_s;
      let l = l_ * l_ * l_;
      let m = m_ * m_ * m_;
      let s = s_ * s_ * s_;
      let l_dS = 3 * k_l * l_ * l_;
      let m_dS = 3 * k_m * m_ * m_;
      let s_dS = 3 * k_s * s_ * s_;
      let l_dS2 = 6 * k_l * k_l * l_;
      let m_dS2 = 6 * k_m * k_m * m_;
      let s_dS2 = 6 * k_s * k_s * s_;
      let f3 = wl * l + wm * m + ws * s;
      let f1 = wl * l_dS + wm * m_dS + ws * s_dS;
      let f22 = wl * l_dS2 + wm * m_dS2 + ws * s_dS2;
      S = S - f3 * f1 / (f1 * f1 - 0.5 * f3 * f22);
    }
    return S;
  }
  function find_cusp(a, b) {
    let S_cusp = compute_max_saturation(a, b);
    let rgb4 = convertOklabToLrgb_default({ l: 1, a: S_cusp * a, b: S_cusp * b });
    let L_cusp = Math.cbrt(1 / Math.max(rgb4.r, rgb4.g, rgb4.b));
    let C_cusp = L_cusp * S_cusp;
    return [L_cusp, C_cusp];
  }
  function find_gamut_intersection(a, b, L1, C1, L0, cusp = null) {
    if (!cusp) {
      cusp = find_cusp(a, b);
    }
    let t;
    if ((L1 - L0) * cusp[1] - (cusp[0] - L0) * C1 <= 0) {
      t = cusp[1] * L0 / (C1 * cusp[0] + cusp[1] * (L0 - L1));
    } else {
      t = cusp[1] * (L0 - 1) / (C1 * (cusp[0] - 1) + cusp[1] * (L0 - L1));
      {
        let dL = L1 - L0;
        let dC = C1;
        let k_l = 0.3963377774 * a + 0.2158037573 * b;
        let k_m = -0.1055613458 * a - 0.0638541728 * b;
        let k_s = -0.0894841775 * a - 1.291485548 * b;
        let l_dt = dL + dC * k_l;
        let m_dt = dL + dC * k_m;
        let s_dt = dL + dC * k_s;
        {
          let L = L0 * (1 - t) + t * L1;
          let C = t * C1;
          let l_ = L + C * k_l;
          let m_ = L + C * k_m;
          let s_ = L + C * k_s;
          let l = l_ * l_ * l_;
          let m = m_ * m_ * m_;
          let s = s_ * s_ * s_;
          let ldt = 3 * l_dt * l_ * l_;
          let mdt = 3 * m_dt * m_ * m_;
          let sdt = 3 * s_dt * s_ * s_;
          let ldt2 = 6 * l_dt * l_dt * l_;
          let mdt2 = 6 * m_dt * m_dt * m_;
          let sdt2 = 6 * s_dt * s_dt * s_;
          let r2 = 4.0767416621 * l - 3.3077115913 * m + 0.2309699292 * s - 1;
          let r1 = 4.0767416621 * ldt - 3.3077115913 * mdt + 0.2309699292 * sdt;
          let r22 = 4.0767416621 * ldt2 - 3.3077115913 * mdt2 + 0.2309699292 * sdt2;
          let u_r = r1 / (r1 * r1 - 0.5 * r2 * r22);
          let t_r = -r2 * u_r;
          let g = -1.2684380046 * l + 2.6097574011 * m - 0.3413193965 * s - 1;
          let g1 = -1.2684380046 * ldt + 2.6097574011 * mdt - 0.3413193965 * sdt;
          let g2 = -1.2684380046 * ldt2 + 2.6097574011 * mdt2 - 0.3413193965 * sdt2;
          let u_g = g1 / (g1 * g1 - 0.5 * g * g2);
          let t_g = -g * u_g;
          let b2 = -0.0041960863 * l - 0.7034186147 * m + 1.707614701 * s - 1;
          let b1 = -0.0041960863 * ldt - 0.7034186147 * mdt + 1.707614701 * sdt;
          let b22 = -0.0041960863 * ldt2 - 0.7034186147 * mdt2 + 1.707614701 * sdt2;
          let u_b = b1 / (b1 * b1 - 0.5 * b2 * b22);
          let t_b = -b2 * u_b;
          t_r = u_r >= 0 ? t_r : 1e6;
          t_g = u_g >= 0 ? t_g : 1e6;
          t_b = u_b >= 0 ? t_b : 1e6;
          t += Math.min(t_r, Math.min(t_g, t_b));
        }
      }
    }
    return t;
  }
  function get_ST_max(a_, b_, cusp = null) {
    if (!cusp) {
      cusp = find_cusp(a_, b_);
    }
    let L = cusp[0];
    let C = cusp[1];
    return [C / L, C / (1 - L)];
  }
  function get_Cs(L, a_, b_) {
    let cusp = find_cusp(a_, b_);
    let C_max = find_gamut_intersection(a_, b_, L, 1, L, cusp);
    let ST_max = get_ST_max(a_, b_, cusp);
    let S_mid = 0.11516993 + 1 / (7.4477897 + 4.1590124 * b_ + a_ * (-2.19557347 + 1.75198401 * b_ + a_ * (-2.13704948 - 10.02301043 * b_ + a_ * (-4.24894561 + 5.38770819 * b_ + 4.69891013 * a_))));
    let T_mid = 0.11239642 + 1 / (1.6132032 - 0.68124379 * b_ + a_ * (0.40370612 + 0.90148123 * b_ + a_ * (-0.27087943 + 0.6122399 * b_ + a_ * (299215e-8 - 0.45399568 * b_ - 0.14661872 * a_))));
    let k4 = C_max / Math.min(L * ST_max[0], (1 - L) * ST_max[1]);
    let C_a = L * S_mid;
    let C_b = (1 - L) * T_mid;
    let C_mid = 0.9 * k4 * Math.sqrt(
      Math.sqrt(
        1 / (1 / (C_a * C_a * C_a * C_a) + 1 / (C_b * C_b * C_b * C_b))
      )
    );
    C_a = L * 0.4;
    C_b = (1 - L) * 0.8;
    let C_0 = Math.sqrt(1 / (1 / (C_a * C_a) + 1 / (C_b * C_b)));
    return [C_0, C_mid, C_max];
  }

// src/okhsl/convertOklabToOkhsl.js
  function convertOklabToOkhsl(lab2) {
    const ret = { mode: "okhsl", l: toe(lab2.l) };
    if (lab2.alpha !== void 0) {
      ret.alpha = lab2.alpha;
    }
    let c4 = Math.sqrt(lab2.a * lab2.a + lab2.b * lab2.b);
    if (!c4) {
      ret.s = 0;
      return ret;
    }
    let [C_0, C_mid, C_max] = get_Cs(lab2.l, lab2.a / c4, lab2.b / c4);
    let s;
    if (c4 < C_mid) {
      let k_0 = 0;
      let k_1 = 0.8 * C_0;
      let k_2 = 1 - k_1 / C_mid;
      let t = (c4 - k_0) / (k_1 + k_2 * (c4 - k_0));
      s = t * 0.8;
    } else {
      let k_0 = C_mid;
      let k_1 = 0.2 * C_mid * C_mid * 1.25 * 1.25 / C_0;
      let k_2 = 1 - k_1 / (C_max - C_mid);
      let t = (c4 - k_0) / (k_1 + k_2 * (c4 - k_0));
      s = 0.8 + 0.2 * t;
    }
    if (s) {
      ret.s = s;
      ret.h = normalizeHue_default(Math.atan2(lab2.b, lab2.a) * 180 / Math.PI);
    }
    return ret;
  }

// src/okhsl/convertOkhslToOklab.js
  function convertOkhslToOklab(hsl2) {
    let l = toe_inv(hsl2.l);
    const ret = { mode: "oklab", l };
    if (hsl2.alpha !== void 0) {
      ret.alpha = hsl2.alpha;
    }
    if (!hsl2.s || hsl2.l === 1) {
      ret.a = ret.b = 0;
      return ret;
    }
    let a_ = Math.cos(hsl2.h / 180 * Math.PI);
    let b_ = Math.sin(hsl2.h / 180 * Math.PI);
    let [C_0, C_mid, C_max] = get_Cs(l, a_, b_);
    let t, k_0, k_1, k_2;
    if (hsl2.s < 0.8) {
      t = 1.25 * hsl2.s;
      k_0 = 0;
      k_1 = 0.8 * C_0;
      k_2 = 1 - k_1 / C_mid;
    } else {
      t = 5 * (hsl2.s - 0.8);
      k_0 = C_mid;
      k_1 = 0.2 * C_mid * C_mid * 1.25 * 1.25 / C_0;
      k_2 = 1 - k_1 / (C_max - C_mid);
    }
    let C = k_0 + t * k_1 / (1 - k_2 * t);
    ret.a = C * a_;
    ret.b = C * b_;
    return ret;
  }

// src/okhsl/modeOkhsl.js
  var modeOkhsl = {
    ...definition_default7,
    mode: "okhsl",
    channels: ["h", "s", "l", "alpha"],
    parse: ["--okhsl"],
    serialize: "--okhsl",
    fromMode: {
      oklab: convertOklabToOkhsl,
      rgb: (c4) => convertOklabToOkhsl(convertRgbToOklab_default(c4))
    },
    toMode: {
      oklab: convertOkhslToOklab,
      rgb: (c4) => convertOklabToRgb_default(convertOkhslToOklab(c4))
    }
  };
  var modeOkhsl_default = modeOkhsl;

// src/okhsv/convertOklabToOkhsv.js
  function convertOklabToOkhsv(lab2) {
    let c4 = Math.sqrt(lab2.a * lab2.a + lab2.b * lab2.b);
    let l = lab2.l;
    let a_ = c4 ? lab2.a / c4 : 1;
    let b_ = c4 ? lab2.b / c4 : 1;
    let [S_max, T] = get_ST_max(a_, b_);
    let S_0 = 0.5;
    let k4 = 1 - S_0 / S_max;
    let t = T / (c4 + l * T);
    let L_v = t * l;
    let C_v = t * c4;
    let L_vt = toe_inv(L_v);
    let C_vt = C_v * L_vt / L_v;
    let rgb_scale = convertOklabToLrgb_default({ l: L_vt, a: a_ * C_vt, b: b_ * C_vt });
    let scale_L = Math.cbrt(
      1 / Math.max(rgb_scale.r, rgb_scale.g, rgb_scale.b, 0)
    );
    l = l / scale_L;
    c4 = c4 / scale_L * toe(l) / l;
    l = toe(l);
    const ret = {
      mode: "okhsv",
      s: c4 ? (S_0 + T) * C_v / (T * S_0 + T * k4 * C_v) : 0,
      v: l ? l / L_v : 0
    };
    if (ret.s) {
      ret.h = normalizeHue_default(Math.atan2(lab2.b, lab2.a) * 180 / Math.PI);
    }
    if (lab2.alpha !== void 0) {
      ret.alpha = lab2.alpha;
    }
    return ret;
  }

// src/okhsv/convertOkhsvToOklab.js
  function convertOkhsvToOklab(hsv2) {
    const ret = { mode: "oklab" };
    if (hsv2.alpha !== void 0) {
      ret.alpha = hsv2.alpha;
    }
    const h = hsv2.h || 0;
    const a_ = Math.cos(h / 180 * Math.PI);
    const b_ = Math.sin(h / 180 * Math.PI);
    const [S_max, T] = get_ST_max(a_, b_);
    const S_0 = 0.5;
    const k4 = 1 - S_0 / S_max;
    const L_v = 1 - hsv2.s * S_0 / (S_0 + T - T * k4 * hsv2.s);
    const C_v = hsv2.s * T * S_0 / (S_0 + T - T * k4 * hsv2.s);
    const L_vt = toe_inv(L_v);
    const C_vt = C_v * L_vt / L_v;
    const rgb_scale = convertOklabToLrgb_default({
      l: L_vt,
      a: a_ * C_vt,
      b: b_ * C_vt
    });
    const scale_L = Math.cbrt(
      1 / Math.max(rgb_scale.r, rgb_scale.g, rgb_scale.b, 0)
    );
    const L_new = toe_inv(hsv2.v * L_v);
    const C = C_v * L_new / L_v;
    ret.l = L_new * scale_L;
    ret.a = C * a_ * scale_L;
    ret.b = C * b_ * scale_L;
    return ret;
  }

// src/okhsv/modeOkhsv.js
  var modeOkhsv = {
    ...definition_default8,
    mode: "okhsv",
    channels: ["h", "s", "v", "alpha"],
    parse: ["--okhsv"],
    serialize: "--okhsv",
    fromMode: {
      oklab: convertOklabToOkhsv,
      rgb: (c4) => convertOklabToOkhsv(convertRgbToOklab_default(c4))
    },
    toMode: {
      oklab: convertOkhsvToOklab,
      rgb: (c4) => convertOklabToRgb_default(convertOkhsvToOklab(c4))
    }
  };
  var modeOkhsv_default = modeOkhsv;

// src/oklab/parseOklab.js
  function parseOklab(color, parsed) {
    if (!parsed || parsed[0] !== "oklab") {
      return void 0;
    }
    const res = { mode: "oklab" };
    const [, l, a, b, alpha] = parsed;
    if (l.type === Tok.Hue || a.type === Tok.Hue || b.type === Tok.Hue) {
      return void 0;
    }
    if (l.type !== Tok.None) {
      res.l = l.type === Tok.Number ? l.value : l.value / 100;
    }
    if (a.type !== Tok.None) {
      res.a = a.type === Tok.Number ? a.value : a.value * 0.4 / 100;
    }
    if (b.type !== Tok.None) {
      res.b = b.type === Tok.Number ? b.value : b.value * 0.4 / 100;
    }
    if (alpha.type !== Tok.None) {
      res.alpha = alpha.type === Tok.Number ? alpha.value : alpha.value / 100;
    }
    return res;
  }
  var parseOklab_default = parseOklab;

// src/oklab/definition.js
  var definition19 = {
    ...definition_default12,
    mode: "oklab",
    toMode: {
      lrgb: convertOklabToLrgb_default,
      rgb: convertOklabToRgb_default
    },
    fromMode: {
      lrgb: convertLrgbToOklab_default,
      rgb: convertRgbToOklab_default
    },
    ranges: {
      l: [0, 1],
      a: [-0.4, 0.4],
      b: [-0.4, 0.4]
    },
    parse: [parseOklab_default],
    serialize: (c4) => `oklab(${c4.l !== void 0 ? c4.l : "none"} ${c4.a !== void 0 ? c4.a : "none"} ${c4.b !== void 0 ? c4.b : "none"}${c4.alpha < 1 ? ` / ${c4.alpha}` : ""})`
  };
  var definition_default19 = definition19;

// src/oklch/parseOklch.js
  function parseOklch(color, parsed) {
    if (!parsed || parsed[0] !== "oklch") {
      return void 0;
    }
    const res = { mode: "oklch" };
    const [, l, c4, h, alpha] = parsed;
    if (l.type !== Tok.None) {
      if (l.type === Tok.Hue) {
        return void 0;
      }
      res.l = l.type === Tok.Number ? l.value : l.value / 100;
    }
    if (c4.type !== Tok.None) {
      res.c = Math.max(
        0,
        c4.type === Tok.Number ? c4.value : c4.value * 0.4 / 100
      );
    }
    if (h.type !== Tok.None) {
      if (h.type === Tok.Percentage) {
        return void 0;
      }
      res.h = h.value;
    }
    if (alpha.type !== Tok.None) {
      res.alpha = alpha.type === Tok.Number ? alpha.value : alpha.value / 100;
    }
    return res;
  }
  var parseOklch_default = parseOklch;

// src/oklch/definition.js
  var definition20 = {
    ...definition_default14,
    mode: "oklch",
    toMode: {
      oklab: (c4) => convertLchToLab_default(c4, "oklab"),
      rgb: (c4) => convertOklabToRgb_default(convertLchToLab_default(c4, "oklab"))
    },
    fromMode: {
      rgb: (c4) => convertLabToLch_default(convertRgbToOklab_default(c4), "oklch"),
      oklab: (c4) => convertLabToLch_default(c4, "oklch")
    },
    parse: [parseOklch_default],
    serialize: (c4) => `oklch(${c4.l !== void 0 ? c4.l : "none"} ${c4.c !== void 0 ? c4.c : "none"} ${c4.h || 0}${c4.alpha < 1 ? ` / ${c4.alpha}` : ""})`,
    ranges: {
      l: [0, 1],
      c: [0, 0.4],
      h: [0, 360]
    }
  };
  var definition_default20 = definition20;

// src/p3/convertP3ToXyz65.js
  var convertP3ToXyz65 = (rgb4) => {
    let { r: r2, g, b, alpha } = convertRgbToLrgb_default(rgb4);
    let res = {
      mode: "xyz65",
      x: 0.486570948648216 * r2 + 0.265667693169093 * g + 0.1982172852343625 * b,
      y: 0.2289745640697487 * r2 + 0.6917385218365062 * g + 0.079286914093745 * b,
      z: 0 * r2 + 0.0451133818589026 * g + 1.043944368900976 * b
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertP3ToXyz65_default = convertP3ToXyz65;

// src/p3/convertXyz65ToP3.js
  var convertXyz65ToP3 = ({ x, y, z, alpha }) => {
    let res = convertLrgbToRgb_default(
      {
        r: x * 2.4934969119414263 - y * 0.9313836179191242 - 0.402710784450717 * z,
        g: x * -0.8294889695615749 + y * 1.7626640603183465 + 0.0236246858419436 * z,
        b: x * 0.0358458302437845 - y * 0.0761723892680418 + 0.9568845240076871 * z
      },
      "p3"
    );
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz65ToP3_default = convertXyz65ToP3;

// src/p3/definition.js
  var definition21 = {
    ...definition_default,
    mode: "p3",
    parse: ["display-p3"],
    serialize: "display-p3",
    fromMode: {
      rgb: (color) => convertXyz65ToP3_default(convertRgbToXyz65_default(color)),
      xyz65: convertXyz65ToP3_default
    },
    toMode: {
      rgb: (color) => convertXyz65ToRgb_default(convertP3ToXyz65_default(color)),
      xyz65: convertP3ToXyz65_default
    }
  };
  var definition_default21 = definition21;

// src/prophoto/convertXyz50ToProphoto.js
  var gamma2 = (v) => {
    let abs3 = Math.abs(v);
    if (abs3 >= 1 / 512) {
      return Math.sign(v) * Math.pow(abs3, 1 / 1.8);
    }
    return 16 * v;
  };
  var convertXyz50ToProphoto = ({ x, y, z, alpha }) => {
    let res = {
      mode: "prophoto",
      r: gamma2(
        x * 1.3457868816471585 - y * 0.2555720873797946 - 0.0511018649755453 * z
      ),
      g: gamma2(
        x * -0.5446307051249019 + y * 1.5082477428451466 + 0.0205274474364214 * z
      ),
      b: gamma2(x * 0 + y * 0 + 1.2119675456389452 * z)
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz50ToProphoto_default = convertXyz50ToProphoto;

// src/prophoto/convertProphotoToXyz50.js
  var linearize2 = (v) => {
    let abs3 = Math.abs(v);
    if (abs3 >= 16 / 512) {
      return Math.sign(v) * Math.pow(abs3, 1.8);
    }
    return v / 16;
  };
  var convertProphotoToXyz50 = (prophoto2) => {
    let r2 = linearize2(prophoto2.r);
    let g = linearize2(prophoto2.g);
    let b = linearize2(prophoto2.b);
    let res = {
      mode: "xyz50",
      x: 0.7977666449006423 * r2 + 0.1351812974005331 * g + 0.0313477341283922 * b,
      y: 0.2880748288194013 * r2 + 0.7118352342418731 * g + 899369387256e-16 * b,
      z: 0 * r2 + 0 * g + 0.8251046025104602 * b
    };
    if (prophoto2.alpha !== void 0) {
      res.alpha = prophoto2.alpha;
    }
    return res;
  };
  var convertProphotoToXyz50_default = convertProphotoToXyz50;

// src/prophoto/definition.js
  var definition22 = {
    ...definition_default,
    mode: "prophoto",
    parse: ["prophoto-rgb"],
    serialize: "prophoto-rgb",
    fromMode: {
      xyz50: convertXyz50ToProphoto_default,
      rgb: (color) => convertXyz50ToProphoto_default(convertRgbToXyz50_default(color))
    },
    toMode: {
      xyz50: convertProphotoToXyz50_default,
      rgb: (color) => convertXyz50ToRgb_default(convertProphotoToXyz50_default(color))
    }
  };
  var definition_default22 = definition22;

// src/rec2020/convertXyz65ToRec2020.js
  var \u03B1 = 1.09929682680944;
  var \u03B2 = 0.018053968510807;
  var gamma3 = (v) => {
    const abs3 = Math.abs(v);
    if (abs3 > \u03B2) {
      return (Math.sign(v) || 1) * (\u03B1 * Math.pow(abs3, 0.45) - (\u03B1 - 1));
    }
    return 4.5 * v;
  };
  var convertXyz65ToRec2020 = ({ x, y, z, alpha }) => {
    let res = {
      mode: "rec2020",
      r: gamma3(
        x * 1.7166511879712683 - y * 0.3556707837763925 - 0.2533662813736599 * z
      ),
      g: gamma3(
        x * -0.6666843518324893 + y * 1.6164812366349395 + 0.0157685458139111 * z
      ),
      b: gamma3(
        x * 0.0176398574453108 - y * 0.0427706132578085 + 0.9421031212354739 * z
      )
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz65ToRec2020_default = convertXyz65ToRec2020;

// src/rec2020/convertRec2020ToXyz65.js
  var \u03B12 = 1.09929682680944;
  var \u03B22 = 0.018053968510807;
  var linearize3 = (v) => {
    let abs3 = Math.abs(v);
    if (abs3 < \u03B22 * 4.5) {
      return v / 4.5;
    }
    return (Math.sign(v) || 1) * Math.pow((abs3 + \u03B12 - 1) / \u03B12, 1 / 0.45);
  };
  var convertRec2020ToXyz65 = (rec20202) => {
    let r2 = linearize3(rec20202.r);
    let g = linearize3(rec20202.g);
    let b = linearize3(rec20202.b);
    let res = {
      mode: "xyz65",
      x: 0.6369580483012911 * r2 + 0.1446169035862083 * g + 0.1688809751641721 * b,
      y: 0.262700212011267 * r2 + 0.6779980715188708 * g + 0.059301716469862 * b,
      z: 0 * r2 + 0.0280726930490874 * g + 1.0609850577107909 * b
    };
    if (rec20202.alpha !== void 0) {
      res.alpha = rec20202.alpha;
    }
    return res;
  };
  var convertRec2020ToXyz65_default = convertRec2020ToXyz65;

// src/rec2020/definition.js
  var definition23 = {
    ...definition_default,
    mode: "rec2020",
    fromMode: {
      xyz65: convertXyz65ToRec2020_default,
      rgb: (color) => convertXyz65ToRec2020_default(convertRgbToXyz65_default(color))
    },
    toMode: {
      xyz65: convertRec2020ToXyz65_default,
      rgb: (color) => convertXyz65ToRgb_default(convertRec2020ToXyz65_default(color))
    },
    parse: ["rec2020"],
    serialize: "rec2020"
  };
  var definition_default23 = definition23;

// src/xyb/constants.js
  var bias = 0.0037930732552754493;
  var bias_cbrt = Math.cbrt(bias);

// src/xyb/convertRgbToXyb.js
  var transfer = (v) => Math.cbrt(v) - bias_cbrt;
  var convertRgbToXyb = (color) => {
    const { r: r2, g, b, alpha } = convertRgbToLrgb_default(color);
    const l = transfer(0.3 * r2 + 0.622 * g + 0.078 * b + bias);
    const m = transfer(0.23 * r2 + 0.692 * g + 0.078 * b + bias);
    const s = transfer(
      0.2434226892454782 * r2 + 0.2047674442449682 * g + 0.5518098665095535 * b + bias
    );
    const res = {
      mode: "xyb",
      x: (l - m) / 2,
      y: (l + m) / 2,
      /* Apply default chroma from luma (subtract Y from B) */
      b: s - (l + m) / 2
    };
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertRgbToXyb_default = convertRgbToXyb;

// src/xyb/convertXybToRgb.js
  var transfer2 = (v) => Math.pow(v + bias_cbrt, 3);
  var convertXybToRgb = ({ x, y, b, alpha }) => {
    const l = transfer2(x + y) - bias;
    const m = transfer2(y - x) - bias;
    const s = transfer2(b + y) - bias;
    const res = convertLrgbToRgb_default({
      r: 11.031566904639861 * l - 9.866943908131562 * m - 0.16462299650829934 * s,
      g: -3.2541473810744237 * l + 4.418770377582723 * m - 0.16462299650829934 * s,
      b: -3.6588512867136815 * l + 2.7129230459360922 * m + 1.9459282407775895 * s
    });
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertXybToRgb_default = convertXybToRgb;

// src/xyb/definition.js
  var definition24 = {
    mode: "xyb",
    channels: ["x", "y", "b", "alpha"],
    parse: ["--xyb"],
    serialize: "--xyb",
    toMode: {
      rgb: convertXybToRgb_default
    },
    fromMode: {
      rgb: convertRgbToXyb_default
    },
    ranges: {
      x: [-0.0154, 0.0281],
      y: [0, 0.8453],
      b: [-0.2778, 0.388]
    },
    interpolate: {
      x: interpolatorLinear,
      y: interpolatorLinear,
      b: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    }
  };
  var definition_default24 = definition24;

// src/xyz50/definition.js
  var definition25 = {
    mode: "xyz50",
    parse: ["xyz-d50"],
    serialize: "xyz-d50",
    toMode: {
      rgb: convertXyz50ToRgb_default,
      lab: convertXyz50ToLab_default
    },
    fromMode: {
      rgb: convertRgbToXyz50_default,
      lab: convertLabToXyz50_default
    },
    channels: ["x", "y", "z", "alpha"],
    ranges: {
      x: [0, 0.964],
      y: [0, 0.999],
      z: [0, 0.825]
    },
    interpolate: {
      x: interpolatorLinear,
      y: interpolatorLinear,
      z: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    }
  };
  var definition_default25 = definition25;

// src/xyz65/convertXyz65ToXyz50.js
  var convertXyz65ToXyz50 = (xyz652) => {
    let { x, y, z, alpha } = xyz652;
    let res = {
      mode: "xyz50",
      x: 1.0479298208405488 * x + 0.0229467933410191 * y - 0.0501922295431356 * z,
      y: 0.0296278156881593 * x + 0.990434484573249 * y - 0.0170738250293851 * z,
      z: -0.0092430581525912 * x + 0.0150551448965779 * y + 0.7518742899580008 * z
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz65ToXyz50_default = convertXyz65ToXyz50;

// src/xyz65/convertXyz50ToXyz65.js
  var convertXyz50ToXyz65 = (xyz502) => {
    let { x, y, z, alpha } = xyz502;
    let res = {
      mode: "xyz65",
      x: 0.9554734527042182 * x - 0.0230985368742614 * y + 0.0632593086610217 * z,
      y: -0.0283697069632081 * x + 1.0099954580058226 * y + 0.021041398966943 * z,
      z: 0.0123140016883199 * x - 0.0205076964334779 * y + 1.3303659366080753 * z
    };
    if (alpha !== void 0) {
      res.alpha = alpha;
    }
    return res;
  };
  var convertXyz50ToXyz65_default = convertXyz50ToXyz65;

// src/xyz65/definition.js
  var definition26 = {
    mode: "xyz65",
    toMode: {
      rgb: convertXyz65ToRgb_default,
      xyz50: convertXyz65ToXyz50_default
    },
    fromMode: {
      rgb: convertRgbToXyz65_default,
      xyz50: convertXyz50ToXyz65_default
    },
    ranges: {
      x: [0, 0.95],
      y: [0, 1],
      z: [0, 1.088]
    },
    channels: ["x", "y", "z", "alpha"],
    parse: ["xyz", "xyz-d65"],
    serialize: "xyz-d65",
    interpolate: {
      x: interpolatorLinear,
      y: interpolatorLinear,
      z: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    }
  };
  var definition_default26 = definition26;

// src/yiq/convertRgbToYiq.js
  var convertRgbToYiq = ({ r: r2, g, b, alpha }) => {
    const res = {
      mode: "yiq",
      y: 0.29889531 * r2 + 0.58662247 * g + 0.11448223 * b,
      i: 0.59597799 * r2 - 0.2741761 * g - 0.32180189 * b,
      q: 0.21147017 * r2 - 0.52261711 * g + 0.31114694 * b
    };
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertRgbToYiq_default = convertRgbToYiq;

// src/yiq/convertYiqToRgb.js
  var convertYiqToRgb = ({ y, i, q, alpha }) => {
    const res = {
      mode: "rgb",
      r: y + 0.95608445 * i + 0.6208885 * q,
      g: y - 0.27137664 * i - 0.6486059 * q,
      b: y - 1.10561724 * i + 1.70250126 * q
    };
    if (alpha !== void 0)
      res.alpha = alpha;
    return res;
  };
  var convertYiqToRgb_default = convertYiqToRgb;

// src/yiq/definition.js
  var definition27 = {
    mode: "yiq",
    toMode: {
      rgb: convertYiqToRgb_default
    },
    fromMode: {
      rgb: convertRgbToYiq_default
    },
    channels: ["y", "i", "q", "alpha"],
    parse: ["--yiq"],
    serialize: "--yiq",
    ranges: {
      i: [-0.595, 0.595],
      q: [-0.522, 0.522]
    },
    interpolate: {
      y: interpolatorLinear,
      i: interpolatorLinear,
      q: interpolatorLinear,
      alpha: { use: interpolatorLinear, fixup: fixupAlpha }
    }
  };
  var definition_default27 = definition27;

// src/round.js
  var r = (value, precision) => Math.round(value * (precision = Math.pow(10, precision))) / precision;
  var round = (precision = 4) => (value) => typeof value === "number" ? r(value, precision) : value;
  var round_default = round;

// src/formatter.js
  var twoDecimals = round_default(2);
  var clamp = (value) => Math.max(0, Math.min(1, value));
  var fixup = (value) => Math.round(clamp(value) * 255);
  var serializeHex = (color) => {
    if (color === void 0) {
      return void 0;
    }
    let r2 = fixup(color.r);
    let g = fixup(color.g);
    let b = fixup(color.b);
    return "#" + (1 << 24 | r2 << 16 | g << 8 | b).toString(16).slice(1);
  };
  var serializeHex8 = (color) => {
    if (color === void 0) {
      return void 0;
    }
    let a = fixup(color.alpha !== void 0 ? color.alpha : 1);
    return serializeHex(color) + (1 << 8 | a).toString(16).slice(1);
  };
  var serializeRgb = (color) => {
    if (color === void 0) {
      return void 0;
    }
    let r2 = color.r !== void 0 ? fixup(color.r) : "none";
    let g = color.g !== void 0 ? fixup(color.g) : "none";
    let b = color.b !== void 0 ? fixup(color.b) : "none";
    if (color.alpha === void 0 || color.alpha === 1) {
      return `rgb(${r2}, ${g}, ${b})`;
    } else {
      return `rgba(${r2}, ${g}, ${b}, ${twoDecimals(clamp(color.alpha))})`;
    }
  };
  var serializeHsl = (color) => {
    if (color === void 0) {
      return void 0;
    }
    const h = twoDecimals(color.h || 0);
    const s = color.s !== void 0 ? twoDecimals(clamp(color.s) * 100) + "%" : "none";
    const l = color.l !== void 0 ? twoDecimals(clamp(color.l) * 100) + "%" : "none";
    if (color.alpha === void 0 || color.alpha === 1) {
      return `hsl(${h}, ${s}, ${l})`;
    } else {
      return `hsla(${h}, ${s}, ${l}, ${twoDecimals(clamp(color.alpha))})`;
    }
  };
  var formatCss = (c4) => {
    const color = prepare_default(c4);
    if (!color) {
      return void 0;
    }
    const def = getMode(color.mode);
    if (!def.serialize || typeof def.serialize === "string") {
      let res = `color(${def.serialize || `--${color.mode}`} `;
      def.channels.forEach((ch, i) => {
        if (ch !== "alpha") {
          res += (i ? " " : "") + (color[ch] !== void 0 ? color[ch] : "none");
        }
      });
      if (color.alpha !== void 0 && color.alpha < 1) {
        res += ` / ${color.alpha}`;
      }
      return res + ")";
    }
    if (typeof def.serialize === "function") {
      return def.serialize(color);
    }
    return void 0;
  };
  var formatHex = (c4) => serializeHex(converter_default("rgb")(c4));
  var formatHex8 = (c4) => serializeHex8(converter_default("rgb")(c4));
  var formatRgb = (c4) => serializeRgb(converter_default("rgb")(c4));
  var formatHsl = (c4) => serializeHsl(converter_default("hsl")(c4));

// src/blend.js
  var BLENDS = {
    normal: (b, s) => s,
    multiply: (b, s) => b * s,
    screen: (b, s) => b + s - b * s,
    "hard-light": (b, s) => s < 0.5 ? b * 2 * s : 2 * s * (1 - b) - 1,
    overlay: (b, s) => b < 0.5 ? s * 2 * b : 2 * b * (1 - s) - 1,
    darken: (b, s) => Math.min(b, s),
    lighten: (b, s) => Math.max(b, s),
    "color-dodge": (b, s) => b === 0 ? 0 : s === 1 ? 1 : Math.min(1, b / (1 - s)),
    "color-burn": (b, s) => b === 1 ? 1 : s === 0 ? 0 : 1 - Math.min(1, (1 - b) / s),
    "soft-light": (b, s) => s < 0.5 ? b - (1 - 2 * s) * b * (1 - b) : b + (2 * s - 1) * ((b < 0.25 ? ((16 * b - 12) * b + 4) * b : Math.sqrt(b)) - b),
    difference: (b, s) => Math.abs(b - s),
    exclusion: (b, s) => b + s - 2 * b * s
  };
  var blend = (colors, type = "normal", mode = "rgb") => {
    let fn5 = typeof type === "function" ? type : BLENDS[type];
    let conv = converter_default(mode);
    let channels = getMode(mode).channels;
    let converted = colors.map((c4) => {
      let cc = conv(c4);
      if (cc.alpha === void 0) {
        cc.alpha = 1;
      }
      return cc;
    });
    return converted.reduce((b, s) => {
      if (b === void 0)
        return s;
      let alpha = s.alpha + b.alpha * (1 - s.alpha);
      return channels.reduce(
        (res, ch) => {
          if (ch !== "alpha") {
            if (alpha === 0) {
              res[ch] = 0;
            } else {
              res[ch] = s.alpha * (1 - b.alpha) * s[ch] + s.alpha * b.alpha * fn5(b[ch], s[ch]) + (1 - s.alpha) * b.alpha * b[ch];
              res[ch] = Math.max(0, Math.min(1, res[ch] / alpha));
            }
          }
          return res;
        },
        { mode, alpha }
      );
    });
  };
  var blend_default = blend;

// src/random.js
  var rand = ([min2, max]) => min2 + Math.random() * (max - min2);
  var to_intervals = (constraints) => Object.keys(constraints).reduce((o, k4) => {
    let v = constraints[k4];
    o[k4] = Array.isArray(v) ? v : [v, v];
    return o;
  }, {});
  var random = (mode = "rgb", constraints = {}) => {
    let def = getMode(mode);
    let limits = to_intervals(constraints);
    return def.channels.reduce(
      (res, ch) => {
        if (limits.alpha || ch !== "alpha") {
          res[ch] = rand(limits[ch] || def.ranges[ch]);
        }
        return res;
      },
      { mode }
    );
  };
  var random_default = random;

// src/map.js
  var mapper = (fn5, mode = "rgb", preserve_mode = false) => {
    let channels = mode ? getMode(mode).channels : null;
    let conv = mode ? converter_default(mode) : prepare_default;
    return (color) => {
      let conv_color = conv(color);
      if (!conv_color) {
        return void 0;
      }
      let res = (channels || getMode(conv_color.mode).channels).reduce(
        (res2, ch) => {
          let v = fn5(conv_color[ch], ch, conv_color, mode);
          if (v !== void 0 && !isNaN(v)) {
            res2[ch] = v;
          }
          return res2;
        },
        { mode: conv_color.mode }
      );
      if (!preserve_mode) {
        return res;
      }
      let prep = prepare_default(color);
      if (prep && prep.mode !== res.mode) {
        return converter_default(prep.mode)(res);
      }
      return res;
    };
  };
  var mapAlphaMultiply = (v, ch, c4) => {
    if (ch !== "alpha") {
      return (v || 0) * (c4.alpha !== void 0 ? c4.alpha : 1);
    }
    return v;
  };
  var mapAlphaDivide = (v, ch, c4) => {
    if (ch !== "alpha" && c4.alpha !== 0) {
      return (v || 0) / (c4.alpha !== void 0 ? c4.alpha : 1);
    }
    return v;
  };
  var mapTransferLinear = (slope = 1, intercept = 0) => (v, ch) => {
    if (ch !== "alpha") {
      return v * slope + intercept;
    }
    return v;
  };
  var mapTransferGamma = (amplitude = 1, exponent = 1, offset = 0) => (v, ch) => {
    if (ch !== "alpha") {
      return amplitude * Math.pow(v, exponent) + offset;
    }
    return v;
  };

// src/util/normalizePositions.js
  var normalizePositions = (arr) => {
    if (arr[0] === void 0) {
      arr[0] = 0;
    }
    if (arr[arr.length - 1] === void 0) {
      arr[arr.length - 1] = 1;
    }
    let i = 1;
    let j;
    let from_idx;
    let from_pos;
    let inc;
    while (i < arr.length) {
      if (arr[i] === void 0) {
        from_idx = i;
        from_pos = arr[i - 1];
        j = i;
        while (arr[j] === void 0)
          j++;
        inc = (arr[j] - from_pos) / (j - i + 1);
        while (i < j) {
          arr[i] = from_pos + (i + 1 - from_idx) * inc;
          i++;
        }
      } else if (arr[i] < arr[i - 1]) {
        arr[i] = arr[i - 1];
      }
      i++;
    }
    return arr;
  };
  var normalizePositions_default = normalizePositions;

// src/easing/midpoint.js
  var midpoint = (H = 0.5) => (t) => H <= 0 ? 1 : H >= 1 ? 0 : Math.pow(t, Math.log(0.5) / Math.log(H));
  var midpoint_default = midpoint;

// src/interpolate/interpolate.js
  var isfn2 = (o) => typeof o === "function";
  var isobj = (o) => o && typeof o === "object";
  var isnum = (o) => typeof o === "number";
  var interpolate_fn = (colors, mode = "rgb", overrides, premap) => {
    let def = getMode(mode);
    let conv = converter_default(mode);
    let conv_colors = [];
    let positions = [];
    let fns = {};
    colors.forEach((val) => {
      if (Array.isArray(val)) {
        conv_colors.push(conv(val[0]));
        positions.push(val[1]);
      } else if (isnum(val) || isfn2(val)) {
        fns[positions.length] = val;
      } else {
        conv_colors.push(conv(val));
        positions.push(void 0);
      }
    });
    normalizePositions_default(positions);
    let fixed = def.channels.reduce((res, ch) => {
      let ffn;
      if (isobj(overrides) && isobj(overrides[ch]) && overrides[ch].fixup) {
        ffn = overrides[ch].fixup;
      } else if (isobj(def.interpolate[ch]) && def.interpolate[ch].fixup) {
        ffn = def.interpolate[ch].fixup;
      } else {
        ffn = (v) => v;
      }
      res[ch] = ffn(conv_colors.map((color) => color[ch]));
      return res;
    }, {});
    if (premap) {
      let ccolors = conv_colors.map((color, idx) => {
        return def.channels.reduce(
          (c4, ch) => {
            c4[ch] = fixed[ch][idx];
            return c4;
          },
          { mode }
        );
      });
      fixed = def.channels.reduce((res, ch) => {
        res[ch] = ccolors.map((c4) => {
          let v = premap(c4[ch], ch, c4, mode);
          return isNaN(v) ? void 0 : v;
        });
        return res;
      }, {});
    }
    let interpolators = def.channels.reduce((res, ch) => {
      let ifn;
      if (isfn2(overrides)) {
        ifn = overrides;
      } else if (isobj(overrides) && isfn2(overrides[ch])) {
        ifn = overrides[ch];
      } else if (isobj(overrides) && isobj(overrides[ch]) && overrides[ch].use) {
        ifn = overrides[ch].use;
      } else if (isfn2(def.interpolate[ch])) {
        ifn = def.interpolate[ch];
      } else if (isobj(def.interpolate[ch])) {
        ifn = def.interpolate[ch].use;
      }
      res[ch] = ifn(fixed[ch]);
      return res;
    }, {});
    let n3 = conv_colors.length - 1;
    return (t) => {
      t = Math.min(Math.max(0, t), 1);
      if (t <= positions[0]) {
        return conv_colors[0];
      }
      if (t > positions[n3]) {
        return conv_colors[n3];
      }
      let idx = 0;
      while (positions[idx] < t)
        idx++;
      let start = positions[idx - 1];
      let delta = positions[idx] - start;
      let P = (t - start) / delta;
      let fn5 = fns[idx] || fns[0];
      if (fn5 !== void 0) {
        if (isnum(fn5)) {
          fn5 = midpoint_default((fn5 - start) / delta);
        }
        P = fn5(P);
      }
      let t0 = (idx - 1 + P) / n3;
      return def.channels.reduce(
        (res, channel) => {
          let val = interpolators[channel](t0);
          if (val !== void 0) {
            res[channel] = val;
          }
          return res;
        },
        { mode }
      );
    };
  };
  var interpolate = (colors, mode = "rgb", overrides) => interpolate_fn(colors, mode, overrides);
  var interpolateWith = (premap, postmap) => (colors, mode = "rgb", overrides) => {
    let post = postmap ? mapper(postmap, mode) : void 0;
    let it = interpolate_fn(colors, mode, overrides, premap);
    return post ? (t) => post(it(t)) : it;
  };
  var interpolateWithPremultipliedAlpha = interpolateWith(
    mapAlphaMultiply,
    mapAlphaDivide
  );

// src/interpolate/splineBasis.js
  var mod = (v, l) => (v + l) % l;
  var bspline = (Vim2, Vim1, Vi, Vip1, t) => {
    let t2 = t * t;
    let t3 = t2 * t;
    return ((1 - 3 * t + 3 * t2 - t3) * Vim2 + (4 - 6 * t2 + 3 * t3) * Vim1 + (1 + 3 * t + 3 * t2 - 3 * t3) * Vi + t3 * Vip1) / 6;
  };
  var interpolatorSplineBasis = (arr) => (t) => {
    let classes = arr.length - 1;
    let i = t >= 1 ? classes - 1 : Math.max(0, Math.floor(t * classes));
    return bspline(
      i > 0 ? arr[i - 1] : 2 * arr[i] - arr[i + 1],
      arr[i],
      arr[i + 1],
      i < classes - 1 ? arr[i + 2] : 2 * arr[i + 1] - arr[i],
      (t - i / classes) * classes
    );
  };
  var interpolatorSplineBasisClosed = (arr) => (t) => {
    const classes = arr.length - 1;
    const i = Math.floor(t * classes);
    return bspline(
      arr[mod(i - 1, arr.length)],
      arr[mod(i, arr.length)],
      arr[mod(i + 1, arr.length)],
      arr[mod(i + 2, arr.length)],
      (t - i / classes) * classes
    );
  };

// src/interpolate/splineNatural.js
  var solve = (v) => {
    let i;
    let n3 = v.length - 1;
    let c4 = new Array(n3);
    let _v = new Array(n3);
    let sol = new Array(n3);
    c4[1] = 1 / 4;
    _v[1] = (6 * v[1] - v[0]) / 4;
    for (i = 2; i < n3; ++i) {
      c4[i] = 1 / (4 - c4[i - 1]);
      _v[i] = (6 * v[i] - (i == n3 - 1 ? v[n3] : 0) - _v[i - 1]) * c4[i];
    }
    sol[0] = v[0];
    sol[n3] = v[n3];
    if (n3 - 1 > 0) {
      sol[n3 - 1] = _v[n3 - 1];
    }
    for (i = n3 - 2; i > 0; --i) {
      sol[i] = _v[i] - c4[i] * sol[i + 1];
    }
    return sol;
  };
  var interpolatorSplineNatural = (arr) => interpolatorSplineBasis(solve(arr));
  var interpolatorSplineNaturalClosed = (arr) => interpolatorSplineBasisClosed(solve(arr));

// src/interpolate/splineMonotone.js
  var sgn = Math.sign;
  var min = Math.min;
  var abs2 = Math.abs;
  var mono = (arr) => {
    let n3 = arr.length - 1;
    let s = [];
    let p4 = [];
    let yp = [];
    for (let i = 0; i < n3; i++) {
      s.push((arr[i + 1] - arr[i]) * n3);
      p4.push(i > 0 ? 0.5 * (arr[i + 1] - arr[i - 1]) * n3 : void 0);
      yp.push(
        i > 0 ? (sgn(s[i - 1]) + sgn(s[i])) * min(abs2(s[i - 1]), abs2(s[i]), 0.5 * abs2(p4[i])) : void 0
      );
    }
    return [s, p4, yp];
  };
  var interpolator = (arr, yp, s) => {
    let n3 = arr.length - 1;
    let n22 = n3 * n3;
    return (t) => {
      let i;
      if (t >= 1) {
        i = n3 - 1;
      } else {
        i = Math.max(0, Math.floor(t * n3));
      }
      let t1 = t - i / n3;
      let t2 = t1 * t1;
      let t3 = t2 * t1;
      return (yp[i] + yp[i + 1] - 2 * s[i]) * n22 * t3 + (3 * s[i] - 2 * yp[i] - yp[i + 1]) * n3 * t2 + yp[i] * t1 + arr[i];
    };
  };
  var interpolatorSplineMonotone = (arr) => {
    if (arr.length < 3) {
      return interpolatorLinear(arr);
    }
    let n3 = arr.length - 1;
    let [s, , yp] = mono(arr);
    yp[0] = s[0];
    yp[n3] = s[n3 - 1];
    return interpolator(arr, yp, s);
  };
  var interpolatorSplineMonotone2 = (arr) => {
    if (arr.length < 3) {
      return interpolatorLinear(arr);
    }
    let n3 = arr.length - 1;
    let [s, p4, yp] = mono(arr);
    p4[0] = (arr[1] * 2 - arr[0] * 1.5 - arr[2] * 0.5) * n3;
    p4[n3] = (arr[n3] * 1.5 - arr[n3 - 1] * 2 + arr[n3 - 2] * 0.5) * n3;
    yp[0] = p4[0] * s[0] <= 0 ? 0 : abs2(p4[0]) > 2 * abs2(s[0]) ? 2 * s[0] : p4[0];
    yp[n3] = p4[n3] * s[n3 - 1] <= 0 ? 0 : abs2(p4[n3]) > 2 * abs2(s[n3 - 1]) ? 2 * s[n3 - 1] : p4[n3];
    return interpolator(arr, yp, s);
  };
  var interpolatorSplineMonotoneClosed = (arr) => {
    let n3 = arr.length - 1;
    let [s, p4, yp] = mono(arr);
    p4[0] = 0.5 * (arr[1] - arr[n3]) * n3;
    p4[n3] = 0.5 * (arr[0] - arr[n3 - 1]) * n3;
    let s_m1 = (arr[0] - arr[n3]) * n3;
    let s_n = s_m1;
    yp[0] = (sgn(s_m1) + sgn(s[0])) * min(abs2(s_m1), abs2(s[0]), 0.5 * abs2(p4[0]));
    yp[n3] = (sgn(s[n3 - 1]) + sgn(s_n)) * min(abs2(s[n3 - 1]), abs2(s_n), 0.5 * abs2(p4[n3]));
    return interpolator(arr, yp, s);
  };

// src/easing/gamma.js
  var gamma4 = (\u03B3 = 1) => \u03B3 === 1 ? (t) => t : (t) => Math.pow(t, \u03B3);
  var gamma_default = gamma4;

// src/samples.js
  var samples = (n3 = 2, \u03B3 = 1) => {
    let ease = gamma_default(\u03B3);
    if (n3 < 2) {
      return n3 < 1 ? [] : [ease(0.5)];
    }
    let res = [];
    for (let i = 0; i < n3; i++) {
      res.push(ease(i / (n3 - 1)));
    }
    return res;
  };
  var samples_default = samples;

// src/clamp.js
  var rgb = converter_default("rgb");
  var fixup_rgb = (c4) => {
    const res = {
      mode: c4.mode,
      r: Math.max(0, Math.min(c4.r, 1)),
      g: Math.max(0, Math.min(c4.g, 1)),
      b: Math.max(0, Math.min(c4.b, 1))
    };
    if (c4.alpha !== void 0) {
      res.alpha = c4.alpha;
    }
    return res;
  };
  var to_displayable_srgb = (c4) => fixup_rgb(rgb(c4));
  var inrange_rgb = (c4) => {
    return c4 !== void 0 && c4.r >= 0 && c4.r <= 1 && c4.g >= 0 && c4.g <= 1 && c4.b >= 0 && c4.b <= 1;
  };
  function displayable(color) {
    return inrange_rgb(rgb(color));
  }
  function inGamut(mode = "rgb") {
    const { gamut } = getMode(mode);
    if (!gamut) {
      return (color) => true;
    }
    const conv = converter_default(typeof gamut === "string" ? gamut : mode);
    return (color) => inrange_rgb(conv(color));
  }
  function clampRgb(color) {
    color = prepare_default(color);
    if (color === void 0 || displayable(color))
      return color;
    let conv = converter_default(color.mode);
    return conv(to_displayable_srgb(color));
  }
  function clampGamut(mode = "rgb") {
    const { gamut } = getMode(mode);
    if (!gamut) {
      return (color) => prepare_default(color);
    }
    const destMode = typeof gamut === "string" ? gamut : mode;
    const destConv = converter_default(destMode);
    const inDestGamut = inGamut(destMode);
    return (color) => {
      const original = prepare_default(color);
      if (!original) {
        return void 0;
      }
      const converted = destConv(original);
      if (inDestGamut(converted)) {
        return original;
      }
      const clamped = fixup_rgb(converted);
      if (original.mode === clamped.mode) {
        return clamped;
      }
      return converter_default(original.mode)(clamped);
    };
  }
  function clampChroma(color, mode = "lch", rgbGamut = "rgb") {
    color = prepare_default(color);
    let inDestinationGamut = rgbGamut === "rgb" ? displayable : inGamut(rgbGamut);
    let clipToGamut = rgbGamut === "rgb" ? to_displayable_srgb : clampGamut(rgbGamut);
    if (color === void 0 || inDestinationGamut(color))
      return color;
    let conv = converter_default(color.mode);
    color = converter_default(mode)(color);
    let clamped = { ...color, c: 0 };
    if (!inDestinationGamut(clamped)) {
      return conv(clipToGamut(clamped));
    }
    let start = 0;
    let end = color.c;
    let range = getMode(mode).ranges.c;
    let resolution = (range[1] - range[0]) / Math.pow(2, 13);
    let _last_good_c;
    while (end - start > resolution) {
      clamped.c = start + (end - start) * 0.5;
      if (inDestinationGamut(clamped)) {
        _last_good_c = clamped.c;
        start = clamped.c;
      } else {
        end = clamped.c;
      }
    }
    return conv(
      inDestinationGamut(clamped) ? clamped : { ...clamped, c: _last_good_c }
    );
  }
  function toGamut(dest = "rgb", mode = "oklch", delta = differenceEuclidean("oklch"), jnd = 0.02) {
    const destConv = converter_default(dest);
    if (!getMode(dest).gamut) {
      return (color) => destConv(color);
    }
    const inDestinationGamut = inGamut(dest);
    const clipToGamut = clampGamut(dest);
    const ucs = converter_default(mode);
    const { ranges } = getMode(mode);
    const White = destConv("white");
    const Black = destConv("black");
    return (color) => {
      color = prepare_default(color);
      if (color === void 0) {
        return void 0;
      }
      const candidate = { ...ucs(color) };
      if (candidate.l >= ranges.l[1]) {
        const res = { ...White };
        if (color.alpha !== void 0) {
          res.alpha = color.alpha;
        }
        return res;
      }
      if (candidate.l <= ranges.l[0]) {
        const res = { ...Black };
        if (color.alpha !== void 0) {
          res.alpha = color.alpha;
        }
        return res;
      }
      if (inDestinationGamut(candidate)) {
        return destConv(candidate);
      }
      let start = 0;
      let end = candidate.c;
      let epsilon = (ranges.c[1] - ranges.c[0]) / 4e3;
      let clipped = clipToGamut(candidate);
      while (end - start > epsilon) {
        candidate.c = (start + end) * 0.5;
        clipped = clipToGamut(candidate);
        if (inDestinationGamut(candidate) || delta && jnd > 0 && delta(candidate, clipped) <= jnd) {
          start = candidate.c;
        } else {
          end = candidate.c;
        }
      }
      return destConv(inDestinationGamut(candidate) ? candidate : clipped);
    };
  }

// src/nearest.js
  var nearest = (colors, metric = differenceEuclidean(), accessor = (d) => d) => {
    let arr = colors.map((c4, idx) => ({ color: accessor(c4), i: idx }));
    return (color, n3 = 1, \u03C4 = Infinity) => {
      if (isFinite(n3)) {
        n3 = Math.max(1, Math.min(n3, arr.length - 1));
      }
      arr.forEach((c4) => {
        c4.d = metric(color, c4.color);
      });
      return arr.sort((a, b) => a.d - b.d).slice(0, n3).filter((c4) => c4.d < \u03C4).map((c4) => colors[c4.i]);
    };
  };
  var nearest_default = nearest;

// src/filter.js
  var minzero = (v) => Math.max(v, 0);
  var clamp2 = (v) => Math.max(Math.min(v, 1), 0);
  var lerp2 = (a, b, t) => a === void 0 || b === void 0 ? void 0 : a + t * (b - a);
  var matrixSepia = (amount) => {
    let a = 1 - clamp2(amount);
    return [
      0.393 + 0.607 * a,
      0.769 - 0.769 * a,
      0.189 - 0.189 * a,
      0,
      0.349 - 0.349 * a,
      0.686 + 0.314 * a,
      0.168 - 0.168 * a,
      0,
      0.272 - 0.272 * a,
      0.534 - 0.534 * a,
      0.131 + 0.869 * a,
      0,
      0,
      0,
      0,
      1
    ];
  };
  var matrixSaturate = (sat) => {
    let s = minzero(sat);
    return [
      0.213 + 0.787 * s,
      0.715 - 0.715 * s,
      0.072 - 0.072 * s,
      0,
      0.213 - 0.213 * s,
      0.715 + 0.285 * s,
      0.072 - 0.072 * s,
      0,
      0.213 - 0.213 * s,
      0.715 - 0.715 * s,
      0.072 + 0.928 * s,
      0,
      0,
      0,
      0,
      1
    ];
  };
  var matrixGrayscale = (amount) => {
    let a = 1 - clamp2(amount);
    return [
      0.2126 + 0.7874 * a,
      0.7152 - 0.7152 * a,
      0.0722 - 0.0722 * a,
      0,
      0.2126 - 0.2126 * a,
      0.7152 + 0.2848 * a,
      0.0722 - 0.0722 * a,
      0,
      0.2126 - 0.2126 * a,
      0.7152 - 0.7152 * a,
      0.0722 + 0.9278 * a,
      0,
      0,
      0,
      0,
      1
    ];
  };
  var matrixHueRotate = (degrees) => {
    let rad = Math.PI * degrees / 180;
    let c4 = Math.cos(rad);
    let s = Math.sin(rad);
    return [
      0.213 + c4 * 0.787 - s * 0.213,
      0.715 - c4 * 0.715 - s * 0.715,
      0.072 - c4 * 0.072 + s * 0.928,
      0,
      0.213 - c4 * 0.213 + s * 0.143,
      0.715 + c4 * 0.285 + s * 0.14,
      0.072 - c4 * 0.072 - s * 0.283,
      0,
      0.213 - c4 * 0.213 - s * 0.787,
      0.715 - c4 * 0.715 + s * 0.715,
      0.072 + c4 * 0.928 + s * 0.072,
      0,
      0,
      0,
      0,
      1
    ];
  };
  var matrix = (values, mode, preserve_mode = false) => {
    let conv = converter_default(mode);
    let channels = getMode(mode).channels;
    return (color) => {
      let c4 = conv(color);
      if (!c4) {
        return void 0;
      }
      let res = { mode };
      let ch;
      let count = channels.length;
      for (let i = 0; i < values.length; i++) {
        ch = channels[Math.floor(i / count)];
        if (c4[ch] === void 0) {
          continue;
        }
        res[ch] = (res[ch] || 0) + values[i] * (c4[channels[i % count]] || 0);
      }
      if (!preserve_mode) {
        return res;
      }
      let prep = prepare_default(color);
      return prep && res.mode !== prep.mode ? converter_default(prep.mode)(res) : res;
    };
  };
  var filterBrightness = (amt = 1, mode = "rgb") => {
    let a = minzero(amt);
    return mapper(mapTransferLinear(a), mode, true);
  };
  var filterContrast = (amt = 1, mode = "rgb") => {
    let a = minzero(amt);
    return mapper(mapTransferLinear(a, (1 - a) / 2), mode, true);
  };
  var filterSepia = (amt = 1, mode = "rgb") => matrix(matrixSepia(amt), mode, true);
  var filterSaturate = (amt = 1, mode = "rgb") => matrix(matrixSaturate(amt), mode, true);
  var filterGrayscale = (amt = 1, mode = "rgb") => matrix(matrixGrayscale(amt), mode, true);
  var filterInvert = (amt = 1, mode = "rgb") => {
    let a = clamp2(amt);
    return mapper(
      (v, ch) => ch === "alpha" ? v : lerp2(a, 1 - a, v),
      mode,
      true
    );
  };
  var filterHueRotate = (deg = 0, mode = "rgb") => matrix(matrixHueRotate(deg), mode, true);

// src/deficiency.js
  var rgb2 = converter_default("rgb");
  var PROT = [
    [1, 0, -0, 0, 1, 0, -0, -0, 1],
    [
      0.856167,
      0.182038,
      -0.038205,
      0.029342,
      0.955115,
      0.015544,
      -288e-5,
      -1563e-6,
      1.004443
    ],
    [
      0.734766,
      0.334872,
      -0.069637,
      0.05184,
      0.919198,
      0.028963,
      -4928e-6,
      -4209e-6,
      1.009137
    ],
    [
      0.630323,
      0.465641,
      -0.095964,
      0.069181,
      0.890046,
      0.040773,
      -6308e-6,
      -7724e-6,
      1.014032
    ],
    [
      0.539009,
      0.579343,
      -0.118352,
      0.082546,
      0.866121,
      0.051332,
      -7136e-6,
      -0.011959,
      1.019095
    ],
    [
      0.458064,
      0.679578,
      -0.137642,
      0.092785,
      0.846313,
      0.060902,
      -7494e-6,
      -0.016807,
      1.024301
    ],
    [
      0.38545,
      0.769005,
      -0.154455,
      0.100526,
      0.829802,
      0.069673,
      -7442e-6,
      -0.02219,
      1.029632
    ],
    [
      0.319627,
      0.849633,
      -0.169261,
      0.106241,
      0.815969,
      0.07779,
      -7025e-6,
      -0.028051,
      1.035076
    ],
    [
      0.259411,
      0.923008,
      -0.18242,
      0.110296,
      0.80434,
      0.085364,
      -6276e-6,
      -0.034346,
      1.040622
    ],
    [
      0.203876,
      0.990338,
      -0.194214,
      0.112975,
      0.794542,
      0.092483,
      -5222e-6,
      -0.041043,
      1.046265
    ],
    [
      0.152286,
      1.052583,
      -0.204868,
      0.114503,
      0.786281,
      0.099216,
      -3882e-6,
      -0.048116,
      1.051998
    ]
  ];
  var DEUTER = [
    [1, 0, -0, 0, 1, 0, -0, -0, 1],
    [
      0.866435,
      0.177704,
      -0.044139,
      0.049567,
      0.939063,
      0.01137,
      -3453e-6,
      7233e-6,
      0.99622
    ],
    [
      0.760729,
      0.319078,
      -0.079807,
      0.090568,
      0.889315,
      0.020117,
      -6027e-6,
      0.013325,
      0.992702
    ],
    [
      0.675425,
      0.43385,
      -0.109275,
      0.125303,
      0.847755,
      0.026942,
      -795e-5,
      0.018572,
      0.989378
    ],
    [
      0.605511,
      0.52856,
      -0.134071,
      0.155318,
      0.812366,
      0.032316,
      -9376e-6,
      0.023176,
      0.9862
    ],
    [
      0.547494,
      0.607765,
      -0.155259,
      0.181692,
      0.781742,
      0.036566,
      -0.01041,
      0.027275,
      0.983136
    ],
    [
      0.498864,
      0.674741,
      -0.173604,
      0.205199,
      0.754872,
      0.039929,
      -0.011131,
      0.030969,
      0.980162
    ],
    [
      0.457771,
      0.731899,
      -0.18967,
      0.226409,
      0.731012,
      0.042579,
      -0.011595,
      0.034333,
      0.977261
    ],
    [
      0.422823,
      0.781057,
      -0.203881,
      0.245752,
      0.709602,
      0.044646,
      -0.011843,
      0.037423,
      0.974421
    ],
    [
      0.392952,
      0.82361,
      -0.216562,
      0.263559,
      0.69021,
      0.046232,
      -0.01191,
      0.040281,
      0.97163
    ],
    [
      0.367322,
      0.860646,
      -0.227968,
      0.280085,
      0.672501,
      0.047413,
      -0.01182,
      0.04294,
      0.968881
    ]
  ];
  var TRIT = [
    [1, 0, -0, 0, 1, 0, -0, -0, 1],
    [
      0.92667,
      0.092514,
      -0.019184,
      0.021191,
      0.964503,
      0.014306,
      8437e-6,
      0.054813,
      0.93675
    ],
    [
      0.89572,
      0.13333,
      -0.02905,
      0.029997,
      0.9454,
      0.024603,
      0.013027,
      0.104707,
      0.882266
    ],
    [
      0.905871,
      0.127791,
      -0.033662,
      0.026856,
      0.941251,
      0.031893,
      0.01341,
      0.148296,
      0.838294
    ],
    [
      0.948035,
      0.08949,
      -0.037526,
      0.014364,
      0.946792,
      0.038844,
      0.010853,
      0.193991,
      0.795156
    ],
    [
      1.017277,
      0.027029,
      -0.044306,
      -6113e-6,
      0.958479,
      0.047634,
      6379e-6,
      0.248708,
      0.744913
    ],
    [
      1.104996,
      -0.046633,
      -0.058363,
      -0.032137,
      0.971635,
      0.060503,
      1336e-6,
      0.317922,
      0.680742
    ],
    [
      1.193214,
      -0.109812,
      -0.083402,
      -0.058496,
      0.97941,
      0.079086,
      -2346e-6,
      0.403492,
      0.598854
    ],
    [
      1.257728,
      -0.139648,
      -0.118081,
      -0.078003,
      0.975409,
      0.102594,
      -3316e-6,
      0.501214,
      0.502102
    ],
    [
      1.278864,
      -0.125333,
      -0.153531,
      -0.084748,
      0.957674,
      0.127074,
      -989e-6,
      0.601151,
      0.399838
    ],
    [
      1.255528,
      -0.076749,
      -0.178779,
      -0.078411,
      0.930809,
      0.147602,
      4733e-6,
      0.691367,
      0.3039
    ]
  ];
  var deficiency = (lut, t) => {
    let tt = Math.max(0, Math.min(1, t));
    let i = Math.round(tt / 0.1);
    let w = Math.round(tt % 0.1);
    let arr = lut[i];
    if (w > 0 && i < lut.length - 1) {
      let arr_2 = lut[i + 1];
      arr = arr.map((v, idx) => lerp(arr[idx], arr_2[idx], w));
    }
    return (color) => {
      let c4 = prepare_default(color);
      if (c4 === void 0) {
        return void 0;
      }
      let { r: r2, g, b } = rgb2(c4);
      let ret = {
        mode: "rgb",
        r: arr[0] * r2 + arr[1] * g + arr[2] * b,
        g: arr[3] * r2 + arr[4] * g + arr[5] * b,
        b: arr[6] * r2 + arr[7] * g + arr[8] * b
      };
      if (c4.alpha !== void 0) {
        ret.alpha = c4.alpha;
      }
      return converter_default(c4.mode)(ret);
    };
  };
  var filterDeficiencyProt = (severity = 1) => deficiency(PROT, severity);
  var filterDeficiencyDeuter = (severity = 1) => deficiency(DEUTER, severity);
  var filterDeficiencyTrit = (severity = 1) => deficiency(TRIT, severity);

// src/easing/smoothstep.js
  var easingSmoothstep = (t) => t * t * (3 - 2 * t);
  var easingSmoothstepInverse = (t) => 0.5 - Math.sin(Math.asin(1 - 2 * t) / 3);

// src/easing/smootherstep.js
  var smootherstep = (t) => t * t * t * (t * (t * 6 - 15) + 10);
  var smootherstep_default = smootherstep;

// src/easing/inOutSine.js
  var inOutSine = (t) => (1 - Math.cos(t * Math.PI)) / 2;
  var inOutSine_default = inOutSine;

// src/wcag.js
  function luminance(color) {
    let c4 = converter_default("lrgb")(color);
    return 0.2126 * c4.r + 0.7152 * c4.g + 0.0722 * c4.b;
  }
  function contrast(a, b) {
    let L1 = luminance(a);
    let L2 = luminance(b);
    return (Math.max(L1, L2) + 0.05) / (Math.min(L1, L2) + 0.05);
  }

// src/index.js
  var a98 = useMode(definition_default2);
  var cubehelix = useMode(definition_default3);
  var dlab = useMode(definition_default4);
  var dlch = useMode(definition_default5);
  var hsi = useMode(definition_default6);
  var hsl = useMode(definition_default7);
  var hsv = useMode(definition_default8);
  var hwb = useMode(definition_default9);
  var jab = useMode(definition_default10);
  var jch = useMode(definition_default11);
  var lab = useMode(definition_default12);
  var lab65 = useMode(definition_default13);
  var lch = useMode(definition_default14);
  var lch65 = useMode(definition_default15);
  var lchuv = useMode(definition_default16);
  var lrgb = useMode(definition_default17);
  var luv = useMode(definition_default18);
  var okhsl = useMode(modeOkhsl_default);
  var okhsv = useMode(modeOkhsv_default);
  var oklab = useMode(definition_default19);
  var oklch = useMode(definition_default20);
  var p3 = useMode(definition_default21);
  var prophoto = useMode(definition_default22);
  var rec2020 = useMode(definition_default23);
  var rgb3 = useMode(definition_default);
  var xyb = useMode(definition_default24);
  var xyz50 = useMode(definition_default25);
  var xyz65 = useMode(definition_default26);
  var yiq = useMode(definition_default27);
  return __toCommonJS(src_exports);
})();

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