Optical illusion renews blue and black dress debate nine years on Express.co.uk 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 Dress colour mystery solved? Expert says we're ALL RIGHT and here's why The Mirror White and gold or blue and black? What colour is the dress? London Evening Standard The Standard This image continues to divide the world: What color do you Blue and black or white and gold? It's been a full decade since "The Dress "took over the internet, yet