pigment

noun
1
a substance that exists naturally in people, animals and plants and gives their skin, leaves, etc. a particular colour
رنگیزه, پیگمان, رنگدانه
2
a coloured powder that is mixed with a liquid to produce paint, etc.
رنگدانه, پیگمان, پیگمنت, ماده رنگی
The wool is coloured using only natural pigment dyes.