chromatic vs purplish-red

chromatic is not a noun while purplish-red is a noun.

Word	Noun	Adjective	Verb	Adverb
chromatic	No	Yes	No	No
purplish-red	Yes	Yes	No	No

chromatic (noun)	purplish-red (noun)
	a red with a tinge of purple

chromatic (adjective)	purplish-red (adjective)
being or having or characterized by hue	of red tinged with purple
based on a scale consisting of 12 semitones
able to refract light without spectral color separation