Rich is probably right, but you can PAINT
your sails. There was a 36' boat near here that had an old set of delivery dacron sails that were painted to resemble tie-dyeing. It really looked strange, but she liked them. However, I don't have a clue what she painted them with, however.Not that I recommend it, but if you want to have colored sails, go for it.SteveAlchemist