Penguin
White	Grey	Black	Yellow
#FFFFFF	#808080	#000000	#FFFF00
rgb(255, 255, 255)	rgb(128,128,128)	rgb(0, 0, 0)	(255,255,0)
hsl(0,0%,100%)	hsl(213,23%,51%)	hsl(0,0%,0%)	hsl(60,100%,50%)