Scarlet
Part of speech: adjective
Definition: of a bright red colour. sinful or whorish (a scarlet woman). embarrassed
Part of speech: noun
Definition: a bright red, slightly orange colour. a scarlet-coloured cloth.
Crimson
Part of speech: adjective
Definition: having a deep red colourhaving loose morals
Part of speech: noun
Definition: A deep, slightly bluish red. Traditionally the colour of blood.
Example sentence: I majored in extracurriculars, honestly. I joined the Harvard Stand Up Comedy Society, which is a ragtag band of misfits. I wrote for 'On Harvard Time,' which was a student TV show trying to be 'The Daily Show.' And I wrote a humor column for 'The Crimson' starting my sophomore year.