amber vs chromatic

amber is a noun but chromatic is not a noun.

Word	Noun	Adjective	Verb	Adverb
amber	Yes	Yes	No	No
chromatic	No	Yes	No	No

amber (noun)	chromatic (noun)
a deep yellow color
a hard yellowish to brownish translucent fossil resin; used for jewelry

amber (adjective)	chromatic (adjective)
of a medium to dark brownish yellow color	being or having or characterized by hue
	based on a scale consisting of 12 semitones
	able to refract light without spectral color separation