Vandyke brown vs brown

Vandyke brown and brown both are nouns.

Word	Noun	Adjective	Verb	Adverb
Vandyke brown	Yes	No	No	No
brown	Yes	Yes	Yes	No

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

Other hypernyms of Vandyke brown include brownness.

Vandyke brown (noun)	brown (noun)
a moderate brown color	an orange of low brightness and saturation

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

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