Charcoal be a dark shade of grey
The War Doctor wore charcoal leather gaiters up to his death. (TV: The Day of the Doctor)
The Third Doctor wore a blazer of charcoal velvet up to his death. (TV: Planet of the Spiders)
Amy Pond wore a charcoal leather jacket. (TV: The Pandorica Opens|The Big Bang)
Donna Noble wore a charcoal scarf when she met Rose. (TV: Turn Left)