How does a black and blue dress sometimes appear white and gold? The Brains Blog 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 Is That Dress White and Gold or Blue and Black? The New York Times 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