orange vs chromatic

orange is a noun but chromatic is not a noun.

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

orange (noun)	chromatic (noun)
orange color or pigment; any of a range of colors between red and yellow
round yellow to orange fruit of any of several citrus trees
any citrus tree bearing oranges
any pigment producing the orange color

orange (adjective)	chromatic (adjective)
of the color between red and yellow; similar to the color of a ripe orange	being or having or characterized by hue
	based on a scale consisting of 12 semitones
	able to refract light without spectral color separation