Some CSS colors are:

Color nameHex valueColor
Aqua#00FFFF      
Aquamarine#7FFFD4      
Black#000000      
Yellow#FFFF00      
YellowGreen#9ACD32      
rgb(154, 205, 50)#9ACD32      
rgba(154, 205, 50,0.2)#9ACD32      
hsl(200, 80%, 30%)#9ACD32      
YellowGreen
(set by JavaScript) 		#9ACD32