Stars Who Wore Cobalt or Klein Blue to the Oscars Stood Out in a Sea of White and Black Dresses Studio Dresses Elegant Dusty Blue Satin Dress With Pockets Poshmark Plus Size Elegant Ruffles Sleeve Chiffon Evening Dresses with Pleated The actual dress was black and blue. The confusion came from how lighting and color perception tricked people's brains, making some see it as white and gold. It became a viral example 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