The priests wear purple because it is assoicated with the crucifiction of Christ! It is a symbol of royality John.19:1,2 It was origionally used in the tabernacle in the old testament Ex.25:4 along with three other types of linen material, colors of blue made from the Cerulean mussel shell, purple from shell fish, and scarlet made from the golw worm! Acts.16:14 Lydis was a seller of purple. Lydean woman were famous for selling beautiful purple! Luke.16:19 the rich man wore purple! The great whore is clothed in purple in Rev. 17:4..and Rev 18:12,16...Genaveve