Venetian red vs brown

Venetian red and brown both are nouns.

Word	Noun	Adjective	Verb	Adverb
Venetian red	Yes	No	No	No
brown	Yes	Yes	Yes	No

As nouns, brown is a hypernym of Venetian red; that is, brown is a word with a broader meaning than Venetian red:

Other hypernyms of Venetian red include brownness.

Venetian red (noun)	brown (noun)
a shade of brown with a tinge of red	an orange of low brightness and saturation

Venetian red (adjective)	brown (adjective)
	(of skin) deeply suntanned
	of a color similar to that of wood or earth

Venetian red (verb)	brown (verb)
	fry in a pan until it changes color
	make brown in color