YinMengWu

IE6
* html .color {color: #F00;}

IE7
*:first-child+html .color {color: #F00;}
Or a shorter version:
*+html .color {color: #F00;}

IE8
@media \0screen {
.color {color: #F00;}
}

IE9
:root .color {color: #F00\9;}

IE10
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
.color {color: #F00;}
}