magenta vs chromatic

magenta is a noun but chromatic is not a noun.

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

magenta (noun)	chromatic (noun)
a primary subtractive color for light; a dark purple-red color; the dye for magenta was discovered in 1859, the year of the battle of Magenta

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