vermilion vs orange red

vermilion and orange red both are nouns.

Word	Noun	Adjective	Verb	Adverb
vermilion	Yes	Yes	Yes	No
orange red	Yes	No	No	No

As nouns, vermilion and orange red are synonyms defined as:

vermilion and orange red: a variable color that is vivid red but sometimes with an orange tinge

Other synonyms of vermilion include scarlet.

vermilion (noun)	orange red (noun)
a variable color that is vivid red but sometimes with an orange tinge	a variable color that is vivid red but sometimes with an orange tinge

vermilion (adjective)	orange red (adjective)
of a vivid red to reddish-orange color

vermilion (verb)	orange red (verb)
color vermilion