In February 2015, a photo of a striped dress posted online unexpectedly turned into a worldwide argument. Some viewers swore it was blue and black, while others were convinced it was white The Science Behind the Dress Illusion Eyepic Eye Care 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 The return of the Black Blue dress illusion and more Is That Dress White and Gold or Blue and Black? The New York Times