That Dress is Blue and Yellow! 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 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 How "The Dress" Became an Illusion Unlike Any Other Scientific American ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive The dress' went viral 10 years ago and taught us the science of color