Meaning of “colour” - Learner’s Dictionary

colour

verb UK (US color) uk us /ˈkʌlər/
ADD COLOUR [ I, T ]

A1 to become a particular colour, or to make something a particular colour:

He drew a heart and coloured it red.
Fry the onions until they start to colour.
AFFECT [ T ]

to affect what someone does, says, or feels:

[ often passive ] Her views are coloured by her own bad experiences.

(Definition of “colour verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)