The Dress Debate: White and Gold or Blue and Black? so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions The dress was a 2015 online viral phenomenon centred on a photograph of a dress. Viewers disagreed on whether the dress was blue and black, or white and gold : r wikipedia Eleven years ago, a single photo posted on Tumblr sparked one of the biggest internet debates of all time. The dress instantly divided the world, some swore it was white and gold,