I would say black would work. But maybe even an dark ash color if you want to be really accurate?
If it's not the shade you want you could always dye it darker (unless you got a black wig).
Maka Albarn; Soul Eater
Anarchy Stocking; P&SwG
Imp Midna; LoZ Twilight Princess
Megpoid Gumi; Vocaloid
Medli; Legend of Zelda Wind Waker
Goddess Madoka; Puella Magi Madoka Magica
Sasha Brauss; Shingeki no Kyojin
Originally Posted by sam vimes
Kōhai. Her name is now Kōhai.