In 2015, a photograph of a dress went viral, dividing viewers over whether its colors were blue and black or white and gold. This optical illusion highlighted differences in human color perception Designer Women Glasses Orchid pink damascus burgundy Blackfin Venice Light WITCHES! YOU'RE WITCHES': Nation divided as Aussies debate #TheDress Decision Making Biases in Group: Is the Dress White and Gold or Blue and Black? Applied Social Psychology (ASP) The Pennsylvania State University