black on aqua
white on aqua
black on black
white on black
black on blue
white on blue
black on fuchsia
white on fuchsia
black on gray
white on gray
black on green
white on green
black on lime
white on lime
black on maroon
white on maroon
black on navy
white on navy
black on olive
white on olive
black on purple
white on purple
black on red
white on red
black on silver
white on silver
black on teal
white on teal
black on white
white on white
black on yellow
white on yellow
black on XXX
white on XXX