rgb转16进制代码_rgb转#

function RGB2Hex(rgb){
    var re = rgb.replace(/(?:\(|\)|rgb|RGB)*/g,"").split(",");//利用正则表达式去掉多余的部分
    var hexColor = "#";
    var hex = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'];
    for (var i = 0; i < 3; i++) {
        var r = null;
        var c = re[i];
        var hexAr = [];
        while (c > 16) {
            r = c % 16;
            c = (c / 16) >> 0;
            hexAr.push(hex[r]);
        }
        hexAr.push(hex[c]);
        hexColor += hexAr.reverse().join('');
    }
    return hexColor;
}
var co = "rgb(208, 204, 255)";
console.log(RGB2Hex(co));