legibility vs comprehensibility

legibility and comprehensibility both are nouns.

Word	Noun	Adjective	Verb	Adverb
legibility	Yes	No	No	No
comprehensibility	Yes	No	No	No

As nouns, comprehensibility is a hypernym of legibility; that is, comprehensibility is a word with a broader meaning than legibility:

legibility: a quality of writing (print or handwriting) that can be easily read
comprehensibility: the quality of comprehensible language or thought

Other hypernyms of legibility include understandability.

legibility (noun)	comprehensibility (noun)
a quality of writing (print or handwriting) that can be easily read	the quality of comprehensible language or thought
distinctness that makes perception easy