Gatsby-white flannel suit (echoing and reminiscence of the good old days and fantasy of Daisy's purity and beauty), pink suit (no connotation, implying that it was not from Oxford origin, and did not really step into the upper class)
Gatsby - white frankinclyced suit (echoing and reminiscing about the good old days and fantasizing about Daisy's purity and beauty), powder suits (no meaning, suggesting that it wasn't Oxford's birth and didn't really step into the upper classes)