ColorBlend插件完全是你想要的

http://plugins.jquery.com/project/colorBlend

这里是我的高亮代码

$("#container").colorBlend([{
    colorList:["white",  "yellow"], 
    param:"background-color",
    cycles: 1,
    duration: 500
}]);

试着使用它

-moz-transition: background .2s linear;
-webkit-transition: background .2s linear;
-o-transition: background .2s linear;
transition: background .2s linear;

这些天jQuery颜色插件支持以下命名颜色:

aqua:[0,255,255],
azure:[240,255,255],
beige:[245,245,220],
black:[0,0,0],
blue:[0,0,255],
brown:[165,42,42],
cyan:[0,255,255],
darkblue:[0,0,139],
darkcyan:[0,139,139],
darkgrey:[169,169,169],
darkgreen:[0,100,0],
darkkhaki:[189,183,107],
darkmagenta:[139,0,139],
darkolivegreen:[85,107,47],
darkorange:[255,140,0],
darkorchid:[153,50,204],
darkred:[139,0,0],
darksalmon:[233,150,122],
darkviolet:[148,0,211],
fuchsia:[255,0,255],
gold:[255,215,0],
green:[0,128,0],
indigo:[75,0,130],
khaki:[240,230,140],
lightblue:[173,216,230],
lightcyan:[224,255,255],
lightgreen:[144,238,144],
lightgrey:[211,211,211],
lightpink:[255,182,193],
lightyellow:[255,255,224],
lime:[0,255,0],
magenta:[255,0,255],
maroon:[128,0,0],
navy:[0,0,128],
olive:[128,128,0],
orange:[255,165,0],
pink:[255,192,203],
purple:[128,0,128],
violet:[128,0,128],
red:[255,0,0],
silver:[192,192,192],
white:[255,255,255],
yellow:[255,255,0]

简单地添加以下片段下面的jquery脚本和享受:

<script src="https://cdn.jsdelivr.net/jquery.color-animation/1/mainfile"></script>

参见示例

更多信息参考

你可以使用2个div:

你可以在上面放一个复制品，然后在把复制品淡入的同时把原来的淡出。

当淡出完成后，用新的bg恢复原始。

$(function(){
    var $mytd = $('#mytd'), $elie = $mytd.clone(), os = $mytd.offset();

      // Create clone w other bg and position it on original
    $elie.toggleClass("class1, class2").appendTo("body")
         .offset({top: os.top, left: os.left}).hide();

    $mytd.mouseover(function() {            
          // Fade original
        $mytd.fadeOut(3000, function() {
            $mytd.toggleClass("class1, class2").show();
            $elie.toggleClass("class1, class2").hide();            
        });
          // Show clone at same time
        $elie.fadeIn(3000);
    });
});​

jsFiddle例子

.toggleClass（） .offset（） .fadeIn（） .淡出（）

在没有jQueryUI的情况下使用动画效果更改背景颜色:

selector.css({
    backgroundColor: "#555",
    transition: "background-color 1.8s"
});