Midnight blue

Midnight blue was a dark shade of blue named for its resemblance to the apparently blue colour of a moonlit night sky.

The Eighth Doctor wore an ascot tie of midnight blue dupioni during the Last Great Time War right up to his death. (TV: The Night of the Doctor)

The Third Doctor wore a midnight blue cravat. (TV: The Ambassadors of Death)

Bill Potts wore midnight blue overalls under her navy peacoat. (TV: The Lie of the Land)

The Master wore a midnight blue bow tie in his Tremas incarnation. (TV: Survival) He also wore a midnight blue shirt in his spy incarnation. (TV: Spyfall, Ascension of the Cybermen|The Timeless Children)

The Tenth Doctor wore a midnight blue shirt when he met Reinette. (TV: The Girl in the Fireplace)

The Eleventh Doctor wore midnight blue trousers. (TV: The Eleventh Hour)

Donna Noble wore a midnight blue scarf when she spoke with Wilf, her grandpa. (TV: Partners in Crime)

A parallel version of the Doctor wore a midnight blue velvet jacket. (PROSE: Sustainable Energy)

Anita wore a dress with midnight blue sleeves when she witnessed her husband, Oscar, die from mortal wounds done by Shockeye, an Androgum, on 1985. (TV: The Two Doctors)

The Ringmaster of the Psychic Circus wore a midnight blue tailcoat with rainbow lapels. (TV: The Greatest Show in the Galaxy)