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 As By Df Women's Mrs Smith Stretch Leather Dress Black Size XS Vintage 1950s Black Velvet Sweetheart Cocktail Dress ALEXANDRA KING Chic A line Off the Shoulder Black Homecoming Dress Satin Short Prom D SELINADRESS