visibility vs salience

visibility and salience both are nouns.

Word	Noun	Adjective	Verb	Adverb
visibility	Yes	No	No	No
salience	Yes	No	No	No

As nouns, salience is a hypernym of visibility; that is, salience is a word with a broader meaning than visibility:

Other hypernyms of visibility include saliency, strikingness.

visibility (noun)	salience (noun)
quality or fact or degree of being visible; perceptible by the eye or obvious to the eye	the state of being salient
capability of providing a clear unobstructed view
degree of exposure to public notice