scarlet vs orange red

scarlet and orange red both are nouns.

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

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

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

Other synonyms of scarlet include vermilion.

scarlet (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

scarlet (adjective)	orange red (adjective)
of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies