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- exports = function(hsl) {
- var h = hsl[0] / 360;
- var s = hsl[1] / 100;
- var l = hsl[2] / 100;
- var ret = [];
- var t2;
- var t3;
- var val;
- if (hsl[3]) ret[3] = hsl[3];
- if (s === 0) {
- val = round(l * 255);
- ret[0] = ret[1] = ret[2] = val;
- return ret;
- }
- if (l < 0.5) {
- t2 = l * (1 + s);
- } else {
- t2 = l + s - l * s;
- }
- var t1 = 2 * l - t2;
- for (var i = 0; i < 3; i++) {
- t3 = h + (1 / 3) * -(i - 1);
- if (t3 < 0) t3++;
- if (t3 > 1) t3--;
- if (6 * t3 < 1) {
- val = t1 + (t2 - t1) * 6 * t3;
- } else if (2 * t3 < 1) {
- val = t2;
- } else if (3 * t3 < 2) {
- val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
- } else {
- val = t1;
- }
- ret[i] = round(val * 255);
- }
- return ret;
- };
- var round = Math.round;
- module.exports = exports;
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