ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive 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 10 years ago, a simple photograph of a dress sparked a global debate unlike anything seen online before. Posted in 2015, the image caused people to argue intensely over whether the dress Popularity of the 'the dress black blue white gold' meme correlates with Number of edits to the Wikipedia article for Justin Trudeau (r=0.854) ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive