Black and Blue or Gold and White? The truth behind the dress Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in. Scientists later explained Black and blue? Or 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 What color is the dress? Why do some people see blue and black and some people see gold and white when looking at a single image of a dress? : r askscience The Science Behind the Dress Illusion Eyepic Eye Care