ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive Eleven years ago today, an image of a dress posted on Tumblr, a social networking platform, ignited a global online debate over whether it was white and gold or blue and black. 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 dress that divided the internet IS blue and black Daily Mail Online knee length dresses for ladies MELISSA SWEATER MIDI DRESS CHARCOAL GREY Line & Dot FAYE dress Symphony Blue 1X