spectral colour vs chromatic color

spectral colour and chromatic color both are nouns.

Word	Noun	Adjective	Verb	Adverb
spectral colour	Yes	No	No	No
chromatic color	Yes	No	No	No

As nouns, spectral colour and chromatic color are synonyms defined as:

Other synonyms of spectral colour include chromatic colour, spectral color.

spectral colour (noun)	chromatic color (noun)
a color that has hue	a color that has hue