text: // randomColor by David Merfield under the CC0 license
  // https://github.com/davidmerfield/randomColor/
  
  ;(function(root, factory) {
  
    // Support CommonJS
    if (typeof exports === 'object') {
      var randomColor = factory();
  
      // Support NodeJS & Component, which allow module.exports to be a function
      if (typeof module === 'object' && module && module.exports) {
        exports = module.exports = randomColor;
      }
  
      // Support CommonJS 1.1.1 spec
      exports.randomColor = randomColor;
  
    // Support AMD
    } else if (typeof define === 'function' && define.amd) {
      define([], factory);
  
    // Support vanilla script loading
    } else {
      root.randomColor = factory();
    }
  
  }(this, function() {
  
    // Seed to get repeatable colors
    var seed = null;
  
    // Shared color dictionary
    var colorDictionary = {};
  
    // Populate the color dictionary
    loadColorBounds();
  
    // check if a range is taken
    var colorRanges = [];
  
    var randomColor = function (options) {
  
      options = options || {};
  
      // Check if there is a seed and ensure it's an
      // integer. Otherwise, reset the seed value.
      if (options.seed !== undefined && options.seed !== null && options.seed === parseInt(options.seed, 10)) {
        seed = options.seed;
  
      // A string was passed as a seed
      } else if (typeof options.seed === 'string') {
        seed = stringToInteger(options.seed);
  
      // Something was passed as a seed but it wasn't an integer or string
      } else if (options.seed !== undefined && options.seed !== null) {
        throw new TypeError('The seed value must be an integer or string');
  
      // No seed, reset the value outside.
      } else {
        seed = null;
      }
  
      var H,S,B;
  
      // Check if we need to generate multiple colors
      if (options.count !== null && options.count !== undefined) {
  
        var totalColors = options.count,
            colors = [];
        // Value false at index i means the range i is not taken yet.
        for (var i = 0; i < options.count; i++) {
          colorRanges.push(false)
          }
        options.count = null;
  
        while (totalColors > colors.length) {
  
          // Since we're generating multiple colors,
          // incremement the seed. Otherwise we'd just
          // generate the same color each time...
          if (seed && options.seed) options.seed += 1;
  
          colors.push(randomColor(options));
        }
  
        options.count = totalColors;
  
        return colors;
      }
  
      // First we pick a hue (H)
      H = pickHue(options);
  
      // Then use H to determine saturation (S)
      S = pickSaturation(H, options);
  
      // Then use S and H to determine brightness (B).
      B = pickBrightness(H, S, options);
  
      // Then we return the HSB color in the desired format
      return setFormat([H,S,B], options);
    };
  
    function pickHue(options) {
      if (colorRanges.length > 0) {
        var hueRange = getRealHueRange(options.hue)
  
        var hue = randomWithin(hueRange)
  
        //Each of colorRanges.length ranges has a length equal approximatelly one step
        var step = (hueRange[1] - hueRange[0]) / colorRanges.length
  
        var j = parseInt((hue - hueRange[0]) / step)
  
        //Check if the range j is taken
        if (colorRanges[j] === true) {
          j = (j + 2) % colorRanges.length
        }
        else {
          colorRanges[j] = true
             }
  
        var min = (hueRange[0] + j * step) % 359,
            max = (hueRange[0] + (j + 1) * step) % 359;
  
        hueRange = [min, max]
  
        hue = randomWithin(hueRange)
  
        if (hue < 0) {hue = 360 + hue;}
        return hue
      }
      else {
        var hueRange = getHueRange(options.hue)
  
        hue = randomWithin(hueRange);
        // Instead of storing red as two seperate ranges,
        // we group them, using negative numbers
        if (hue < 0) {
          hue = 360 + hue;
        }
  
        return hue;
      }
    }
  
    function pickSaturation (hue, options) {
  
      if (options.hue === 'monochrome') {
        return 0;
      }
  
      if (options.luminosity === 'random') {
        return randomWithin([0,100]);
      }
  
      var saturationRange = getSaturationRange(hue);
  
      var sMin = saturationRange[0],
          sMax = saturationRange[1];
  
      switch (options.luminosity) {
  
        case 'bright':
          sMin = 55;
          break;
  
        case 'dark':
          sMin = sMax - 10;
          break;
  
        case 'light':
          sMax = 55;
          break;
     }
  
      return randomWithin([sMin, sMax]);
  
    }
  
    function pickBrightness (H, S, options) {
  
      var bMin = getMinimumBrightness(H, S),
          bMax = 100;
  
      switch (options.luminosity) {
  
        case 'dark':
          bMax = bMin + 20;
          break;
  
        case 'light':
          bMin = (bMax + bMin)/2;
          break;
  
        case 'random':
          bMin = 0;
          bMax = 100;
          break;
      }
  
      return randomWithin([bMin, bMax]);
    }
  
    function setFormat (hsv, options) {
  
      switch (options.format) {
  
        case 'hsvArray':
          return hsv;
  
        case 'hslArray':
          return HSVtoHSL(hsv);
  
        case 'hsl':
          var hsl = HSVtoHSL(hsv);
          return 'hsl('+hsl[0]+', '+hsl[1]+'%, '+hsl[2]+'%)';
  
        case 'hsla':
          var hslColor = HSVtoHSL(hsv);
          var alpha = options.alpha || Math.random();
          return 'hsla('+hslColor[0]+', '+hslColor[1]+'%, '+hslColor[2]+'%, ' + alpha + ')';
  
        case 'rgbArray':
          return HSVtoRGB(hsv);
  
        case 'rgb':
          var rgb = HSVtoRGB(hsv);
          return 'rgb(' + rgb.join(', ') + ')';
  
        case 'rgba':
          var rgbColor = HSVtoRGB(hsv);
          var alpha = options.alpha || Math.random();
          return 'rgba(' + rgbColor.join(', ') + ', ' + alpha + ')';
  
        default:
          return HSVtoHex(hsv);
      }
  
    }
  
    function getMinimumBrightness(H, S) {
  
      var lowerBounds = getColorInfo(H).lowerBounds;
  
      for (var i = 0; i < lowerBounds.length - 1; i++) {
  
        var s1 = lowerBounds[i][0],
            v1 = lowerBounds[i][1];
  
        var s2 = lowerBounds[i+1][0],
            v2 = lowerBounds[i+1][1];
  
        if (S >= s1 && S <= s2) {
  
           var m = (v2 - v1)/(s2 - s1),
               b = v1 - m*s1;
  
           return m*S + b;
        }
  
      }
  
      return 0;
    }
  
    function getHueRange (colorInput) {
  
      if (typeof parseInt(colorInput) === 'number') {
  
        var number = parseInt(colorInput);
  
        if (number < 360 && number > 0) {
          return [number, number];
        }
  
      }
  
      if (typeof colorInput === 'string') {
  
        if (colorDictionary[colorInput]) {
          var color = colorDictionary[colorInput];
          if (color.hueRange) {return color.hueRange;}
        } else if (colorInput.match(/^#?([0-9A-F]{3}|[0-9A-F]{6})$/i)) {
          var hue = HexToHSB(colorInput)[0];
          return [ hue, hue ];
        }
      }
  
      return [0,360];
  
    }
  
    function getSaturationRange (hue) {
      return getColorInfo(hue).saturationRange;
    }
  
    function getColorInfo (hue) {
  
      // Maps red colors to make picking hue easier
      if (hue >= 334 && hue <= 360) {
        hue-= 360;
      }
  
      for (var colorName in colorDictionary) {
         var color = colorDictionary[colorName];
         if (color.hueRange &&
             hue >= color.hueRange[0] &&
             hue <= color.hueRange[1]) {
            return colorDictionary[colorName];
         }
      } return 'Color not found';
    }
  
    function randomWithin (range) {
      if (seed === null) {
        //generate random evenly destinct number from : https://martin.ankerl.com/2009/12/09/how-to-create-random-colors-programmatically/
        var golden_ratio = 0.618033988749895
        var r=Math.random()
        r += golden_ratio
        r %= 1
        return Math.floor(range[0] + r*(range[1] + 1 - range[0]));
      } else {
        //Seeded random algorithm from http://indiegamr.com/generate-repeatable-random-numbers-in-js/
        var max = range[1] || 1;
        var min = range[0] || 0;
        seed = (seed * 9301 + 49297) % 233280;
        var rnd = seed / 233280.0;
        return Math.floor(min + rnd * (max - min));
  }
    }
  
    function HSVtoHex (hsv){
  
      var rgb = HSVtoRGB(hsv);
  
      function componentToHex(c) {
          var hex = c.toString(16);
          return hex.length == 1 ? '0' + hex : hex;
      }
  
      var hex = '#' + componentToHex(rgb[0]) + componentToHex(rgb[1]) + componentToHex(rgb[2]);
  
      return hex;
  
    }
  
    function defineColor (name, hueRange, lowerBounds) {
  
      var sMin = lowerBounds[0][0],
          sMax = lowerBounds[lowerBounds.length - 1][0],
  
          bMin = lowerBounds[lowerBounds.length - 1][1],
          bMax = lowerBounds[0][1];
  
      colorDictionary[name] = {
        hueRange: hueRange,
        lowerBounds: lowerBounds,
        saturationRange: [sMin, sMax],
        brightnessRange: [bMin, bMax]
      };
  
    }
  
    function loadColorBounds () {
  
      defineColor(
        'monochrome',
        null,
        [[0,0],[100,0]]
      );
  
      defineColor(
        'red',
        [-26,18],
        [[20,100],[30,92],[40,89],[50,85],[60,78],[70,70],[80,60],[90,55],[100,50]]
      );
  
      defineColor(
        'orange',
        [18,46],
        [[20,100],[30,93],[40,88],[50,86],[60,85],[70,70],[100,70]]
      );
  
      // defineColor(
      //   'yellow',
      //   [46,62],
      //   [[25,100],[40,94],[50,89],[60,86],[70,84],[80,82],[90,80],[100,75]]
      // );
  
      defineColor(
        'green',
        [62,178],
        [[30,100],[40,90],[50,85],[60,81],[70,74],[80,64],[90,50],[100,40]]
      );
  
      defineColor(
        'blue',
        [178, 257],
        [[20,100],[30,86],[40,80],[50,74],[60,60],[70,52],[80,44],[90,39],[100,35]]
      );
  
      defineColor(
        'purple',
        [257, 282],
        [[20,100],[30,87],[40,79],[50,70],[60,65],[70,59],[80,52],[90,45],[100,42]]
      );
  
      defineColor(
        'pink',
        [282, 334],
        [[20,100],[30,90],[40,86],[60,84],[80,80],[90,75],[100,73]]
      );
  
    }
  
    function HSVtoRGB (hsv) {
  
      // this doesn't work for the values of 0 and 360
      // here's the hacky fix
      var h = hsv[0];
      if (h === 0) {h = 1;}
      if (h === 360) {h = 359;}
  
      // Rebase the h,s,v values
      h = h/360;
      var s = hsv[1]/100,
          v = hsv[2]/100;
  
      var h_i = Math.floor(h*6),
        f = h * 6 - h_i,
        p = v * (1 - s),
        q = v * (1 - f*s),
        t = v * (1 - (1 - f)*s),
        r = 256,
        g = 256,
        b = 256;
  
      switch(h_i) {
        case 0: r = v; g = t; b = p;  break;
        case 1: r = q; g = v; b = p;  break;
        case 2: r = p; g = v; b = t;  break;
        case 3: r = p; g = q; b = v;  break;
        case 4: r = t; g = p; b = v;  break;
        case 5: r = v; g = p; b = q;  break;
      }
  
      var result = [Math.floor(r*255), Math.floor(g*255), Math.floor(b*255)];
      return result;
    }
  
    function HexToHSB (hex) {
      hex = hex.replace(/^#/, '');
      hex = hex.length === 3 ? hex.replace(/(.)/g, '$1$1') : hex;
  
      var red = parseInt(hex.substr(0, 2), 16) / 255,
            green = parseInt(hex.substr(2, 2), 16) / 255,
            blue = parseInt(hex.substr(4, 2), 16) / 255;
  
      var cMax = Math.max(red, green, blue),
            delta = cMax - Math.min(red, green, blue),
            saturation = cMax ? (delta / cMax) : 0;
  
      switch (cMax) {
        case red: return [ 60 * (((green - blue) / delta) % 6) || 0, saturation, cMax ];
        case green: return [ 60 * (((blue - red) / delta) + 2) || 0, saturation, cMax ];
        case blue: return [ 60 * (((red - green) / delta) + 4) || 0, saturation, cMax ];
      }
    }
  
    function HSVtoHSL (hsv) {
      var h = hsv[0],
        s = hsv[1]/100,
        v = hsv[2]/100,
        k = (2-s)*v;
  
      return [
        h,
        Math.round(s*v / (k<1 ? k : 2-k) * 10000) / 100,
        k/2 * 100
      ];
    }
  
    function stringToInteger (string) {
      var total = 0
      for (var i = 0; i !== string.length; i++) {
        if (total >= Number.MAX_SAFE_INTEGER) break;
        total += string.charCodeAt(i)
      }
      return total
    }
  
    // get The range of given hue when options.count!=0
    function getRealHueRange(colorHue)
    { if (!isNaN(colorHue)) {
      var number = parseInt(colorHue);
  
      if (number < 360 && number > 0) {
        return getColorInfo(colorHue).hueRange
      }
    }
      else if (typeof colorHue === 'string') {
  
        if (colorDictionary[colorHue]) {
          var color = colorDictionary[colorHue];
  
          if (color.hueRange) {
            return color.hueRange
         }
      } else if (colorHue.match(/^#?([0-9A-F]{3}|[0-9A-F]{6})$/i)) {
          var hue = HexToHSB(colorHue)[0]
          return getColorInfo(hue).hueRange
      }
    }
  
      return [0,360]
  }
    return randomColor;
  }));