Caramel (colour)
From Tardis Wiki, the free Doctor Who reference
Caramel was a shade of brown named after a filling for food including chocolates, cakes and sweets.
The Eighth Doctor wore caramel brown boots. (COMIC: The Pictures of Josephine Day, A Matter of Life and Death, The Lost Dimension) right up to his death on Karn during the Time War. (TV: The Night of the Doctor)