oxford gray vs charcoal

oxford gray and charcoal both are nouns.

Word	Noun	Adjective	Verb	Adverb
oxford gray	Yes	No	No	No
charcoal	Yes	Yes	Yes	No

As nouns, oxford gray and charcoal are synonyms defined as:

Other synonyms of oxford gray include charcoal gray, charcoal grey, oxford grey.

oxford gray (noun)	charcoal (noun)
a very dark grey color	a stick of black carbon material used for drawing
	a drawing made with a stick of black carbon material
	a very dark grey color
	a carbonaceous material obtained by heating wood or other organic matter in the absence of air

oxford gray (adjective)	charcoal (adjective)
	of a very dark grey

oxford gray (verb)	charcoal (verb)
	draw, trace, or represent with charcoal