chromatic vs caramel brown

chromatic is not a noun while caramel brown is a noun.

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

chromatic (noun)	caramel brown (noun)
	a medium to dark tan color

chromatic (adjective)	caramel brown (adjective)
being or having or characterized by hue	having the color of caramel; of a moderate yellow-brown
based on a scale consisting of 12 semitones
able to refract light without spectral color separation