Is That Dress White and Gold or Blue and Black? The New York Times White & Gold Or Blue & Black? Debate Over Dress Color Rages On 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 Optical illusion renews blue and black dress debate nine years on Express.co.uk The return of the Black Blue dress illusion and more Here's why people saw the dress differently.