Quote Originally Posted by wereotter View Post
all dyes are tradable except the ones purchased for real money on the mog station, and they probably don't want to let those be traded or dyed onto clothing that you could sell so as not to make that a source of income for players to, effectively, RMT buy Gil.
Technically, this can already be done since you can just gift someone the item code for the dyes. It's against the rules, but then, so is RMT in general.