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 DRESS TURNS 10 YEARS OLD! The dress was a 2015 online viral phenomenon centred on a photograph of a dress. Viewers disagreed on whether the dress was blue and black, or 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 Is this dress blue and black or white and gold? (We don't mean to revive the viral debate from way back in 2015). What makes Mary's dress so vibrantly blue (and gold)