color spectrum vs visible spectrum

color spectrum and visible spectrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
color spectrum	Yes	No	No	No
visible spectrum	Yes	No	No	No

As nouns, color spectrum and visible spectrum are synonyms defined as:

color spectrum and visible spectrum: the distribution of colors produced when light is dispersed by a prism

color spectrum (noun)	visible spectrum (noun)
the distribution of colors produced when light is dispersed by a prism	the distribution of colors produced when light is dispersed by a prism