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 This Dress is Blue and Black, Right? What Colors do You See? 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 The Sammy Dress La Maregold