javascript – 将Hsl转换为rgb和hex

我需要一个颜色转换器从hsl转换为rgb和十六进制值.我打算像this那样做.我正在使用jquery和jquery ui range slider.这是我的代码：

$(function() {
    $( "#hsl_hue_range" ).slider({
        min: 0,
        max: 100,
        value: 0,
        range: false,
        animate:"slow",
        orientation: "horizontal",
        slide: function( event, ui ) {
            var hsl_hue = ui.value;
        }
    });
});

$(function() {
    $( "#hsl_saturation_range" ).slider({
        min: 0,
        max: 100,
        value: 0,
        range: false,
        animate:"slow",
        orientation: "horizontal",
        slide: function( event, ui ) {
            var hsl_saturation = ui.value;
        }
    });
});

$(function() {
    $( "#hsl_light_range" ).slider({
        min: 0,
        max: 100,
        value: 0,
        range: false,
        animate:"slow",
        orientation: "horizontal",
        slide: function( event, ui ) {
            var hsl_light = ui.value;
        }
    });
});

我想要这样的解决方案：

转换器的输入可以由变量给出.比如hsl_hue hsl_saturation hsl_light.

有没有办法做到这一点？
如果没办法,我该怎么办？

解决方法:

HSL到RGB：

/**
     * Converts an HSL color value to RGB. Conversion formula
     * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
     * Assumes h, s, and l are contained in the set [0, 1] and
     * returns r, g, and b in the set [0, 255].
     *
     * @param   {number}  h       The hue
     * @param   {number}  s       The saturation
     * @param   {number}  l       The lightness
     * @return  {Array}           The RGB representation
     */
    function hslToRgb(h, s, l){
        var r, g, b;

        if(s == 0){
            r = g = b = l; // achromatic
        }else{
            var hue2rgb = function hue2rgb(p, q, t){
                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;
            }

            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)];
    }

您可以在此处找到更多信息 – HSL to RGB color conversion

标签：javascript,jquery,colors,converter,color-picker
来源： https://codeday.me/bug/20190917/1809534.html