试(奖金)

let hex2rgb= c=> `rgb(${c.match(/\w\w/g).map(x=>+`0x${x}`)})`
let rgb2hex=c=>'#'+c.match(/\d+/g).map(x=>(+x).toString(16).padStart(2,0)).join``

让hex2rgb = c = > ' rgb ($ {c.match (w / \ \ w / g) . map (x = > + 0 x $ {x})})”; 让rgb2hex = c = > ' # ' + c.match (\ d + / g) . map (x = > (+ x) .toString (16) .padStart (2,0)) . join '; / /测试 console.log('#0080C0—>'，hex2rgb('#0080C0')); console.log(“rgb(0, 128, 192)——>”,rgb2hex(的rgb (0, 128, 192)));

如果你需要比较两个颜色值(给定为RGB，名称颜色或十六进制值)或转换为hex使用HTML5 canvas对象。

var canvas = document.createElement("canvas");
var ctx = this.canvas.getContext('2d');

ctx.fillStyle = "rgb(pass,some,value)";
var temp =  ctx.fillStyle;
ctx.fillStyle = "someColor";

alert(ctx.fillStyle == temp);

对于直接从jQuery转换，您可以尝试:

  function rgbToHex(color) {
    var bg = color.match(/^rgb\((\d+),\s*(\d+),\s*(\d+)\)$/);
    function hex(x) {
      return ("0" + parseInt(x).toString(16)).slice(-2);
    }
    return     "#" + hex(bg[1]) + hex(bg[2]) + hex(bg[3]);
  }

  rgbToHex($('.col-tab-bar .col-tab span').css('color'))

十六进制到RGB

Const hex2rgb = (hex) => { const r = parseInt(十六进制。切片(1,3)，16) const g = parseInt(十六进制。切片(3,5)，16) const b = parseInt(十六进制。切片(5,7)，16) //返回{r, g, b} //返回一个对象 返回[r, g, b] ｝ console.log (hex2rgb (" # 0080 c0 "))

RGB转十六进制

rgb2hex = (r, g, b) => { Var RGB = (r << 16) | (g << 8) | b //返回'#' + rgb.toString(16) // #80c0 //返回'#' + (0x1000000 + rgb).toString(16).slice(1) // #0080c0 //或使用[padStart](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padStart) 返回'#' + rgb.toString(16)。padStart (0) ｝ Console.log (rgb2hex(0, 128, 192))

此外，如果有人需要在线工具，我已经建立了海克斯到RGB，反之亦然。

我正在使用XAML数据，具有十六进制格式的#AARRGGBB (Alpha，红色，绿色，蓝色)。利用上面的答案，以下是我的解决方案:

function hexToRgba(hex) {
    var bigint, r, g, b, a;
    //Remove # character
    var re = /^#?/;
    var aRgb = hex.replace(re, '');
    bigint = parseInt(aRgb, 16);

    //If in #FFF format
    if (aRgb.length == 3) {
        r = (bigint >> 4) & 255;
        g = (bigint >> 2) & 255;
        b = bigint & 255;
        return "rgba(" + r + "," + g + "," + b + ",1)";
    }

    //If in #RRGGBB format
    if (aRgb.length >= 6) {
        r = (bigint >> 16) & 255;
        g = (bigint >> 8) & 255;
        b = bigint & 255;
        var rgb = r + "," + g + "," + b;

        //If in #AARRBBGG format
        if (aRgb.length == 8) {
            a = ((bigint >> 24) & 255) / 255;
            return "rgba(" + rgb + "," + a.toFixed(1) + ")";
        }
    }
    return "rgba(" + rgb + ",1)";
}

http://jsfiddle.net/kvLyscs3/

下面是将HEX颜色值分别更改为红色，绿色，蓝色的Javascript代码。

R = hexToR("#FFFFFF");
G = hexToG("#FFFFFF");
B = hexToB("#FFFFFF");

function hexToR(h) {return parseInt((cutHex(h)).substring(0,2),16)}
function hexToG(h) {return parseInt((cutHex(h)).substring(2,4),16)}
function hexToB(h) {return parseInt((cutHex(h)).substring(4,6),16)}
function cutHex(h) {return (h.charAt(0)=="#") ? h.substring(1,7):h}