Answer: crimson

AnswerCrossword Clue
CRIMSONCantabs' color
crimsonto make red (the colour of blood, also REDD)
crimsonOf a rich deep red color inclining to purple
CRIMSONIvy League newspaper name
CRIMSONShowing deep embarrassment
CRIMSONJailbird keeps lips red (7)
CRIMSONHarvard color
CRIMSONDeep red
CRIMSONHarvard
CRIMSONLeague team from Massachusetts
CRIMSONLike a certain Tide in Alabama
CRIMSONColor of 35 Down's sweaters.
CRIMSONWell-known college magazine.
CRIMSONHarvard's newspaper.
CRIMSONDeep purplish-red
CRIMSONHarvard's team
CRIMSONPurplish-red color
CRIMSONIvy League color