Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in. Scientists later explained Tips for Wearing Gold Evening Dresses to Weddings Azazie Blog The Dress of viral internet fame. Actual colour black and blue on the Download Scientific Diagram so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions The dress of many colours: is it blue and black or white and gold? ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive