violet vs chromatic

violet is a noun but chromatic is not a noun.

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

violet (noun)	chromatic (noun)
a variable color that lies beyond blue in the spectrum
any of numerous low-growing violas with small flowers

violet (adjective)	chromatic (adjective)
of a color intermediate between red and blue	being or having or characterized by hue
	based on a scale consisting of 12 semitones
	able to refract light without spectral color separation