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 Science explains how time spent outdoors colors your view of #thedress Los Angeles Times How does a black and blue dress sometimes appear white and gold? The Brains Blog 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 Black and blue? Or