ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive How "The Dress" Became an Illusion Unlike Any Other Scientific American 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 CMV: Change my view from seeing this dress as blue and black to seeing it as white and gold. : r changemyview