color vision vs chromatic vision

color vision and chromatic vision both are nouns.

Word	Noun	Adjective	Verb	Adverb
color vision	Yes	No	No	No
chromatic vision	Yes	No	No	No

As nouns, color vision and chromatic vision are synonyms defined as:

Other synonyms of color vision include trichromacy.

color vision (noun)	chromatic vision (noun)
the normal ability to see colors	the normal ability to see colors