@kcuf/mere-color/dist/esm/util/rgb-to-hsv.js

Mere color utils for generating, manipulation, a11y purposes.

export default function rgbToHsv(rgb) {
  var r = rgb.r,
    g = rgb.g,
    b = rgb.b,
    a = rgb.a;
  var max = Math.max(r, g, b);
  var delta = max - Math.min(r, g, b);
  var hh = delta ? max === r ? (g - b) / delta : max === g ? 2 + (b - r) / delta : 4 + (r - g) / delta : 0;
  return {
    h: 60 * (hh < 0 ? hh + 6 : hh),
    s: max ? delta / max * 100 : 0,
    v: max / 255 * 100,
    a: a
  };
}
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