colouring

noun
1
a substance that is used to give a particular colour to food
رنگ غذایی, رنگ‌دهنده
2
the colour of a person’s skin, eyes and hair
رنگ, رنگ‌رو, رنگ‌پوست
Blue suited her fair colouring.
This face powder will enhance your natural colouring.
3
the colours that exist in something, especially a plant or an animal
رنگ‌بندی, رنگارنگی
insects with vivid yellow and black colouring
She realized the coins were fake when the gold colouring began to rub off.