rust-red vs rusty-red

rust-red and rusty-red both are adjectives.

Word	Noun	Adjective	Verb	Adverb
rust-red	No	Yes	No	No
rusty-red	No	Yes	No	No

As adjectives, rust-red and rusty-red are synonyms defined as:

rust-red (adjective)	rusty-red (adjective)
of a red color tinged with rust	of a red color tinged with rust