ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive London Times Women's Framed V Neck Flutter Sleeve Flare Dress Black Ivory Size L knee length dresses for ladies MELISSA SWEATER MIDI DRESS CHARCOAL GREY Line & Dot 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 Debate SETTLED: Black And Blue Or White And Gold? TODAY 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.