Violet

Violet was a shade of purple. It was situated on one end of the visible spectrum before indigo and blue. (TV: Sky)

The Eighth Doctor wore a violet waistcoat when he first met Stacy Townsend during an encounter with Cybermen on the Dreadnought. (COMIC: Dreadnought)

Donna Noble wore a violet top under her gunmetal grey sweater dress. (TV: Turn Left, The Stolen Earth/Journey's End)

The Fourth Doctor wore a crimson scarf with violet stripes, (TV: The Leisure Hive) up to his death. (TV: Logopolis)

The Sixth Doctor wore a plain violet waistcoat. (COMIC: Endgame)

wore a violet suit when she and Clara Oswald went to Skaro. (TV: The Magician's Apprentice/The Witch's Familiar)

The Eleventh Doctor wore a violet bow tie. (TV: The Bells of Saint John)

As CEO of 24 Carat, Melanie Bush wore a violet skirt suit. (WC: 24 Carat)

The Curator, taking the form of an older Sixth Doctor, wore a violet frock coat with a silver cat brooch. (AUDIO: Crossed Lines)

Raxacoricovarlonpatorians had violet skin. (COMIC: Doctormania)

The Maelstrom was partially violet. (PROSE: Enter Wildthyme)