White and gold or blue and black what colour is the dress? An eyewitness gives a definitive answer The Independent The Independent 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 Black Tie vs White Tie Evening Dresses: Style Guide Is The Dress blue and black or white and gold? The answer lies in vision psychology Psychology The Guardian Proof the Dress Is Blue PS Tech