salmon pink vs yellowish pink

salmon pink and yellowish pink both are nouns.

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

As nouns, salmon pink and yellowish pink are synonyms defined as:

Other synonyms of salmon pink include apricot, peach.

salmon pink (noun)	yellowish pink (noun)
a shade of pink tinged with yellow	a shade of pink tinged with yellow