Brown
From Tardis Wiki, the free Doctor Who reference
Gingerbread was a shade of brown named after a substance used to make food.
The Eighth Doctor wore gingerbread leather gaiters; (COMIC: The Pictures of Josephine Day, A Matter of Life and Death, The Lost Dimension) right up to his fall on Karn. (TV: The Night of the Doctor)
The War Doctor wore gingerbread leather gaiters when he, Fey and the Sisterhood of Karn fought Mark VIII Daleks and the Morlontoa of the Seventh Sky on the Dorian Nexus. (COMIC: The Clockwise War)
The Valeyard wore copies of the Eighth Doctor's gingerbread leather gaiters. (AUDIO: The War Valeyard)