oil colour vs British spelling

oil colour and British spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
oil colour	Yes	No	No	No
British spelling	Yes	No	No	No

oil colour (noun)	British spelling (noun)
oil paint containing pigment that is used by an artist	English orthography used in the UK, Ireland and most of the Commonwealth (characterized by 'analyse', 'centre' and 'useable')