coloured vs indigo

coloured and indigo both are nouns.

Word	Noun	Adjective	Verb	Adverb
coloured	Yes	Yes	No	No
indigo	Yes	Yes	No	No

coloured (noun)	indigo (noun)
a United States term for Blacks that is now considered offensive	a blue-violet color
	deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowers; a source of indigo dye
	a blue dye obtained from plants or made synthetically

coloured (adjective)	indigo (adjective)
having color or a certain color; sometimes used in combination	having a color between blue and violet
(used of color) artificially produced; not natural
having skin rich in melanin pigments;
favoring one person or side over another