raw sienna vs caramel

raw sienna and caramel both are nouns.

Word	Noun	Adjective	Verb	Adverb
raw sienna	Yes	No	No	No
caramel	Yes	Yes	No	No

As nouns, raw sienna and caramel are synonyms defined as:

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

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

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