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 Twilight Elegance A & M Enterprises Bridal The White and Gold (No, Blue and Black!) Dress That Melted the Internet The New York Times The actual dress was black and blue. The confusion came from how lighting and color perception tricked people's brains, making some see it as white and gold. It became a viral example Twilight Elegance Alternative Black & White and Purple Lace Gothic Wedding Dress Viva La Pepa