color spectrum vs spectrum

color spectrum and spectrum both are nouns.

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

As nouns, spectrum is a hypernym of color spectrum; that is, spectrum is a word with a broader meaning than color spectrum:

color spectrum: the distribution of colors produced when light is dispersed by a prism
spectrum: an ordered array of the components of an emission or wave

color spectrum (noun)	spectrum (noun)
the distribution of colors produced when light is dispersed by a prism	a broad range of related objects or values or qualities or ideas or activities
	an ordered array of the components of an emission or wave