这条线会为你随机改变颜色:

setInterval(function(){y.style.color=''+"rgb(1"+Math.floor(Math.random() * 100)+",1"+Math.floor(Math.random() * 100)+",1"+Math.floor(Math.random() * 100)+")"+'';},1000);

我已经生成了100种不同对比度的不同颜色，你可以根据需要增加数值:

Feedle举例:http://jsfiddle.net/zFbfE/29/ -

// CHANGE THE INITIAL SEED HERE
Math.seed = 23;

/**
 * Math.seededRandom()
 *
 */
Math.seededRandom = function(max, min) {
    max = max || 1;
    min = min || 0;

    Math.seed = (Math.seed * 9301 + 49297) % 233280;
    var rnd = Math.seed / 233280.0;

    return min + rnd * (max - min);
}

var c, r = 0,
    l = 100000,
    t,
    random = [],
    seededRandom = [];

for(var i=0; i<100; i++)
{
    random[i] = 0;
    seededRandom[i] = 0;
}

// Do some loops withouth benchmarking
// to have a "fair" comparison
/*for (c = 0; c < l; ++c) {
    r = 5+5;
}*/


// benchmark Math.random()
t = new Date().getTime();
s = '';


// benchmark Math.seededRandom()
t = new Date().getTime();
while(l--){
    r = Math.seededRandom();
    seededRandom[(r*100)|0] += 1;
}

var inc = 0;
for(c=0; c<seededRandom.length; c++) {
    //var inc=15;
    for(var i=0; i<seededRandom.length; i++)
    {
        if(i!==c) {
            if(seededRandom[c] == seededRandom[i]) {
            seededRandom[c] += inc;
            inc = inc + 10;
              //    console.log(seededRandom[c]);
            }
        }
    }
    inc = inc > 255 ? 0 : inc;
}

var a=[], b=[], d=[], inc=0, dec=255;
for(c=0; c<seededRandom.length; c++) {
    a[c] = (seededRandom[c] % 100) + inc;
    b[c] = dec - Math.floor(seededRandom[c]/100);
    if(b[c] < 0)
        b[c] = b[c]* - 1;
    if(a[c] > 255)
        a[c] -= 255;
    d[c] = Math.floor(b[c]/2);
    inc += 5;
    dec -= 5;
}


var app = angular.module("myAppp", []).controller('myCtrl',function($scope, $http) {
$scope.id = [];
for(var i=0; i<seededRandom.length; i++)
    $scope.id.push(i);

// Generate random number
$scope.Icon = [];$scope.Icon2 = [], $scope.Icon3 = [];

var ran = 0, inc = 5, dec = 255;
for(var i=0;i<seededRandom.length;i++)
{
    $scope.Icon.push(a[i]%100);
    $scope.Icon2.push(b[i]%100);
    $scope.Icon3.push(d[i]%100);
    console.log(a[i] + "|" + b[i] + "|" + d[i]);
}

});

它对我有用，我想它对你也会有帮助。

这个例子中最好的一点是，它将生成100个随机颜色，并且每个页面加载的颜色都是相同的。

正则表达式

总是返回有效的十六进制6位颜色

"#xxxxxx".replace(/x/g, y=>(Math.random()*16|0).toString(16))

令c= "#xxxxxx"。替换(/ x / g, y = > (math . random () * 16 | 0) .toString (16)); console.log (c); document.body.style.background = c

你可以用这个简单的函数

function getRandomColor(){
 var color =  "#" + (Math.random() * 0xFFFFFF << 0).toString(16);
 return color;
}

'#'+Math.random().toString(16).slice(-3) // three-numbers format aka #f3c
'#'+Math.random().toString(16).slice(-6) // six-number format aka #abc123

我喜欢这个:'#' + (Math.random().toString(16) + "000000").substring(2,8)