tan vs chromatic

tan is a noun but chromatic is not a noun.

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

tan (noun)	chromatic (noun)
a light brown the color of topaz
ratio of the opposite to the adjacent side of a right-angled triangle
a browning of the skin resulting from exposure to the rays of the sun

tan (adjective)	chromatic (adjective)
of a light yellowish-brown color	being or having or characterized by hue
	based on a scale consisting of 12 semitones
	able to refract light without spectral color separation

tan (verb)	chromatic (verb)
get a tan, from wind or sun
treat skins and hides with tannic acid so as to convert them into leather