achromatic vs hue

achromatic is not a noun while hue is a noun.

Word	Noun	Adjective	Verb	Adverb
achromatic	No	Yes	No	No
hue	Yes	No	Yes	No

achromatic (noun)	hue (noun)
	the quality of a color as determined by its dominant wavelength

achromatic (adjective)	hue (adjective)
having no hue

achromatic (verb)	hue (verb)
	suffuse with color
	take on color or become colored