self-coloured vs self-colored

self-coloured and self-colored both are adjectives.

Word	Noun	Adjective	Verb	Adverb
self-coloured	No	Yes	No	No
self-colored	No	Yes	No	No

As adjectives, self-coloured and self-colored are synonyms defined as:

Other synonyms of self-coloured include solid.

self-coloured (adjective)	self-colored (adjective)
of the same color throughout	of the same color throughout