Original Optical Illusion Blue And Black Dress Is This Dress Blue And Black Or White And Neuroscientists Explain Discrepancy Behind "The Dress" Illusion Off Shoulder Long Sleeve Long Glitter Formal Dress Gold Cocktail Dress With Long Sleeves Etsy 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