Black.
This was predicted by Afrodomus (who predicted the "natural" of the 1960s) the seer of prognosticators, son of the prognosticator of seers, Astrodomus (who predicted indoor football stadiums with retractable domes).
Black is the new black and all competitors must be black either by birth or by conversion via shit-dipping themselves. It's a fact that the Greek Heero, Achilles (that was his slave name, his true Hebroic name was Axilleze), was dipped in the River Shits by his mammy which made him total blacknessified and invulverated to penetration by the weapons of mens 'n' sheet.