What Does Black Tie Optional Wedding Attire Mean? 10 years ago today, this dress was posted online, turning into a viral phenomenon. Viewers couldn't decide if the dress was blue and black, or white and gold. It was later confirmed The Dress Debate Black and Blue or White and Gold British Vogue British Vogue 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 White and gold or blue and black what colour is the dress? An eyewitness gives a definitive answer The Independent The Independent Is it white and gold or blue and black? The truth behind the dress debate. CooperVision