Scarlet

Members of the Prydonian Chapter were distinguished from the other Chapters by their scarlet and orange robes. (TV: The Deadly Assassin) Morbius, though a member of the Patrex Chapter, (PROSE: The Legacy of Gallifrey) wore a scarlet sash in his first incarnation as part of his outfit as "the General", replacing the golden Sash of Rassilon which had been taken from him upon his exile from Gallifrey. (PROSE: Warmonger)

Gwen Cooper wore a scarlet shirt throughout the 21st century Dalek invasion. (TV: The Stolen Earth, Journey's End)

Amy Pond wore a scarlet tank top under her chocolate brown leather jacket. (TV: Victory of the Daleks; GAME: City of the Daleks, Blood of the Cybermen, TARDIS, Shadows of the Vashta Nerada)

Leela wore a scarlet cravat with her walking suit when she and the Fourth Doctor went to London in 1892. (TV: The Talons of Weng-Chiang)

Henry Jago wore a scarlet waistcoat when the Sixth Doctor took him and George Litefoot to Venus. (AUDIO: Voyage to Venus)

Jo Grant wore a scarlet tie when she first met Daleks and Ogrons. (TV: Day of the Daleks)

The Tenth Doctor wore a scarlet shirt. (TV: 42)

The Twelfth Doctor wore a scarlet dress shirt. (TV: The Pyramid at the End of the World)

In his, the Master wore a scarlet shirt under his black jacket. (COMIC: The Organ Grinder)

Li Shou Yuing wore a scarlet shirt when she met the Seventh Doctor and Ace during their encounter with Morgaine and the Destroyer. (TV: Battlefield)

The Monk wore a scarlet robe. (PROSE: The Persistence of Memory)

Eve's skin was scarlet. (TV: The Mad Woman in the Attic)

The Pied Piper wore a scarlet tailcoat when posing as Mr. Spellman, director of Spellman's Magical Museum of the Circus. (TV: The Day of the Clown)