chromatic vs ultramarine

chromatic is not a noun while ultramarine is a noun.

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

chromatic (noun)	ultramarine (noun)
	a vivid blue to purple-blue color
	blue pigment made of powdered lapis lazuli

chromatic (adjective)	ultramarine (adjective)
being or having or characterized by hue	of a brilliant pure blue to purplish blue color
based on a scale consisting of 12 semitones
able to refract light without spectral color separation