What colour is the dress? Explained The Dress (@official_dress) Posts X TheDress one year on eight things we learned from the viral phenomenon Social media The Guardian 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, The Dress What Color Is This Dress? Know Your Meme In 2015, a photograph of a dress went viral, dividing viewers over whether its colors were blue and black or white and gold. This optical illusion highlighted differences in human color perception