chromatic vs bluish green

chromatic is not a noun while bluish green is a noun.

Word	Noun	Adjective	Verb	Adverb
chromatic	No	Yes	No	No
bluish green	Yes	Yes	No	No

chromatic (noun)	bluish green (noun)
	a blue-green color or pigment

chromatic (adjective)	bluish green (adjective)
being or having or characterized by hue	of a bluish shade of green
based on a scale consisting of 12 semitones
able to refract light without spectral color separation