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 perception What color is this dress? And why do some see it as white and gold and others see it as black and blue? Psychology & Neuroscience Stack Exchange Is This Dress Blue And Black Or White And Gold? Here's What The Experts Say Black and blue Activating TOK