Colour-blind means unable to tell certain colours apart. Be colour-blind.
About one man in twelve is, and one woman in two hundred, since it is carried on the X chromosome. Almost nobody who is colour-blind sees no colour at all, which the name suggests wrongly.
1adjectivecolour-blindUnable to tell certain colours apart.
“He was colour-blind and had picked the tie by asking.”
colour-blind is a quality.
Practised in Colours & Patterns