orange red vs vermilion

orange red and vermilion both are nouns.

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

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

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

Other synonyms of orange red include scarlet.

orange red (noun)	vermilion (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

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

orange red (verb)	vermilion (verb)
	color vermilion