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 color doesn't matter the dress is ugly CNN Is This Dress Blue And Black Or White And Gold? Here's What The Experts Say 10 years ago, this dress was posted on social media causing a viral debate on whether it was blue and black or white and gold. The phenomenon revealed differences in human color