Voici les codes couleur des icones dans Windows 8

Exemples

lime
green
emerald
teal
cyan
cobalt
indigo
violet
pink
magenta
crimson
red
orange
amber
yellow
brown
olive
steel
mauve
taupe
 

Code CSS

.lime{		background-color: #A4C400;	color: #FFF;}
.green{		background-color: #60A917;	color: #FFF;}
.emerald{	background-color: #008A00;	color: #FFF;}
.teal{		background-color: #00ABA9;	color: #FFF;}
.cyan{		background-color: #1BA1E2;	color: #FFF;}
.cobalt{	background-color: #0050EF;	color: #FFF;}
.indigo{	background-color: #6A00FF;	color: #FFF;}
.violet{	background-color: #AA00FF;	color: #FFF;}
.pink{		background-color: #F472D0;	color: #FFF;}
.magenta{	background-color: #D80073;	color: #FFF;}
.crimson{	background-color: #A20025;	color: #FFF;}
.red{		background-color: #E51400;	color: #FFF;}
.orange{	background-color: #FA6800;	color: #FFF;}
.amber{		background-color: #F0A30A;	color: #FFF;}
.yellow{	background-color: #E3C800;	color: #FFF;}
.brown{		background-color: #825A2C;	color: #FFF;}
.olive{		background-color: #6D8764;	color: #FFF;}
.steel{		background-color: #647687;	color: #FFF;}
.mauve{		background-color: #76608A;	color: #FFF;}
.taupe{		background-color: #87794E;	color: #FFF;}

Source: http://www.creepyed.com/2012/11/windows-phone-8-theme-colors-hex-rgb/