Batman
Black Yellow Blue Grey
#000000 #FFFF00 #0000FF #CCCCCC
rgb(0,0,0) rgb(255,255,0) rgb(0,0,255) rgb(127.127,127)
hsl(0,0%,0%) hsl(60,100%,100%) hsl(240,100%,100%) hsl(0,50%,50%)