He wears brown threecorned hat, red scrapped shirt with knife, belt and a hook for a hand.
Jake the Snake Blake is a crew member of the Redbeard Runner. He actually may well be Ironhook back when he was under Redbeard's command, before he became a renegade captain and lost his leg. Hence a brown three-cornered hat instead of the black bicorn proper to captains. This theory is more like unreal, because he appeared in 1996 while Ironhook first appeared in 1993, but it's still fun to imagine.