ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive 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 Remember the viral dress that divided the internet back in 2015? Was it blue and black, or was it white and gold? , For the first episode of our brand new podcast, Stories in Colour, join Professor Remember The Dress? The viral blue and black dress was seen as white and gold by thousands of people., As it turns out, the photo that broke the internet 10 years ago was more than a maddening