yellowish brown vs caramel

yellowish brown and caramel both are nouns.

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

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

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

yellowish brown (noun)	caramel (noun)
a medium to dark tan color	a medium to dark tan color
	firm chewy candy made from caramelized sugar and butter and milk
	burnt sugar; used to color and flavor food

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