Woman discovers the iconic 'Optical Illusion Dress' that went viral in 2015 at yard sale Times of India 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 Piaget 'Opal' White Gold Dress Watch Analog:Shift 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 color theory How can the "dress" optical illusion be accurately reproduced on other images? Graphic Design Stack Exchange