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 The Dress: Blue & Black? White & Gold? Cease & Desist? CNN The Infamous White and Gold Dress Turns 10 Today 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 Is That Dress White and Gold or Blue and Black? The New York Times