Related topics: Colours
black and white
showing pictures or images only in black, white, and grey [↪ colour]:
black and white photos
an old black and white TV
considering things in a way that is too simple and as if things are either completely good or completely bad:
There's still a tendency to see the issues in black and white.
in written form, and therefore definite:
Once it's down in black and white, you can't forget it.