salmon pink vs pink

salmon pink and pink both are nouns.

Word	Noun	Adjective	Verb	Adverb
salmon pink	Yes	No	No	No
pink	Yes	Yes	Yes	No

As nouns, pink is a hypernym of salmon pink; that is, pink is a word with a broader meaning than salmon pink:

salmon pink (noun)	pink (noun)
a shade of pink tinged with yellow	a light shade of red
	a person with mildly leftist political views
	any of various flowers of plants of the genus Dianthus cultivated for their fragrant flowers

salmon pink (adjective)	pink (adjective)
	of a light shade of red

salmon pink (verb)	pink (verb)
	cut in a zigzag pattern with pinking shears, in sewing
	make light, repeated taps on a surface
	sound like a car engine that is firing too early