Bone (colour)
From Tardis Wiki, the free Doctor Who reference
Bone was a shade of white named after the substance which forms the skeletons.
The War Doctor wore a bone and caramel pinstripe shirt during the Battle for the Tantalus Eye, (PROSE: Engines of War) and right up to his death after the 1562/2013 Zygon Invasion of Earth and the Fall of Gallifrey. (TV: The Day of the Doctor)