purpleness vs lavender

purpleness and lavender both are nouns.

Word	Noun	Adjective	Verb	Adverb
purpleness	Yes	No	No	No
lavender	Yes	Yes	No	No

As nouns, lavender is a hyponym of purpleness; that is, lavender is a word with a more specific, narrower meaning than purpleness:

Other hyponyms of purpleness include mauve, reddish purple, royal purple, reddish blue, violet.

purpleness (noun)	lavender (noun)
a color between red and blue	a pale purple color
	any of various Old World aromatic shrubs or subshrubs with usually mauve or blue flowers; widely cultivated

purpleness (adjective)	lavender (adjective)
	of a pale purple color