Function hue

src/common/style/CartoCSS.js:2967–2970

(h)

            a);

        function hue(h) {
            h = h < 0 ? h + 1 : (h > 1 ? h - 1 : h);
            if (h * 6 < 1) {return m1 + (m2 - m1) * h * 6;} else if (h * 2 < 1) {return m2;} else if (h * 3 < 2) {return m1 + (m2 - m1) * (2 / 3 - h) * 6;} else {return m1;}
        }
    },
    hue: function (color) {
        if (!('toHSL' in color)) {return null;}