rust-colored vs colored

rust-colored is not a noun while colored is a noun.

Word	Noun	Adjective	Verb	Adverb
rust-colored	No	Yes	No	No
colored	Yes	Yes	No	No

rust-colored (noun)	colored (noun)
	a United States term for Blacks that is now considered offensive

rust-colored (adjective)	colored (adjective)
having the brown color of rust	having color or a certain color; sometimes used in combination
	(used of color) artificially produced; not natural
	having skin rich in melanin pigments;
	favoring one person or side over another