The actual dress was black and blue. The confusion came from how lighting and color perception tricked people's brains, making some see it as white and gold. It became a viral example The Dress Illusion WHITE & GOLD BLUE & BLACK YouTube White and gold or blue and black what colour is the dress? An eyewitness gives a definitive answer The Independent The Independent Is The Dress blue and black or white and gold? The answer lies in vision psychology Psychology The Guardian