Meaning of “colour” - Learner’s Dictionary

colour

noun UK (US color) uk us /ˈkʌlər/
RED/BLUE ETC [ C, U ]

A1 red, blue, green, yellow, etc:

She dressed in bright colours.
Green is my favourite colour.
What colour shall I paint the kitchen?
FILM/TV ETC [ U ]

all the colours, not only black and white:

Why didn't he shoot the film in colour?
SKIN [ U ]

the colour of a person's skin, which shows their race

FACE [ U ]

healthy pink skin on someone's face:

The colour drained from her cheeks.
INTEREST [ U ]

interesting or exciting qualities or parts:

We added your story for a bit of local colour.

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