function hue2rgb(p: number, q: number, t: number): number {
   if (t < 0) t += 1;
   if (t > 1) t -= 1;
   if (t < 1 / 6) return p + (q - p) * 6 * t;
   if (t < 1 / 2) return q;
   if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;
   return p;
};

/**
 *
 * @param h
 * @param s
 * @param l
 * @returns {array}
 */
export function hslToRgb(h: number, s: number, l: number): [number, number, number] {
   h/=360;
   s/=100;
   l/=100;
   var r, g, b;

   if (s == 0) {
      r = g = b = l; // achromatic
   } else {
      var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
      var p = 2 * l - q;
      r = hue2rgb(p, q, h + 1 / 3);
      g = hue2rgb(p, q, h);
      b = hue2rgb(p, q, h - 1 / 3);
   }

   return [Math.round(r * 255), Math.round(g * 255), Math.round(b * 255)];
}