crimson
crim-son
adjective
Of a deep, rich red colour, often with a purplish tinge.
"Her cheeks turned crimson with embarrassment."
noun
A deep, vivid red colour or pigment.
"She chose crimson for the curtains."
Thesaurus
Synonyms: deep red, ruby, coloured, reddened, colorful, red, colourful, red-faced, colored, flushed, violent, bloody