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Edit File: culori.cjs

// 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
});
module.exports = __toCommonJS(src_exports);

// 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);

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