legibility vs readability

legibility and readability both are nouns.

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

As nouns, legibility and readability are synonyms defined as:

legibility and readability: a quality of writing (print or handwriting) that can be easily read

legibility (noun)	readability (noun)
a quality of writing (print or handwriting) that can be easily read	the quality of written language that makes it easy to read and understand
distinctness that makes perception easy	a quality of writing (print or handwriting) that can be easily read