@evg-b/evg-ui/dist/styles/Color/fromrgb/RGBArawToHSLA.js

EVG-UI library inspired by Material Design.

function RGBArawToHSLA (_ref) {
  var r = _ref.r,
      g = _ref.g,
      b = _ref.b,
      a = _ref.a;
  var alpha = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  r = r / 255;
  g = g / 255;
  b = b / 255;
  var cmin = Math.min(r, g, b);
  var cmax = Math.max(r, g, b);
  var delta = cmax - cmin;
  var h,
      s,
      l = 0;

  if (delta == 0) {
    h = 0;
  } else if (cmax == r) {
    h = (g - b) / delta % 6;
  } else if (cmax == g) {
    h = (b - r) / delta + 2;
  } else {
    h = (r - g) / delta + 4;
  }

  h = Math.round(h * 60);

  if (h < 0) {
    h += 360;
  }

  l = (cmax + cmin) / 2;
  s = delta == 0 ? 0 : delta / (1 - Math.abs(2 * l - 1));
  s = +(s * 100).toFixed(1);
  l = +(l * 100).toFixed(1);
  return alpha ? "hsla(".concat(h, ",").concat(s, "%,").concat(l, "%,").concat(a, ")") : "hsl(".concat(h, ",").concat(s, "%,").concat(l, "%)");
}

export default RGBArawToHSLA;