caramel brown vs buff

caramel brown and buff both are nouns.

Word	Noun	Adjective	Verb	Adverb
caramel brown	Yes	Yes	No	No
buff	Yes	Yes	Yes	No

As nouns, caramel brown and buff are synonyms defined as:

Other synonyms of caramel brown include caramel, raw sienna, yellowish brown.

caramel brown (noun)	buff (noun)
a medium to dark tan color	an implement consisting of soft material mounted on a block; used for polishing (as in manicuring)
	a medium to dark tan color
	bare skin
	an ardent follower and admirer
	a soft thick undyed leather from the skins of e.g. buffalo or oxen

caramel brown (adjective)	buff (adjective)
having the color of caramel; of a moderate yellow-brown	of the yellowish-beige color of buff leather

caramel brown (verb)	buff (verb)
	polish and make shiny
	strike, beat repeatedly