10 years ago, a simple photograph of a dress sparked a global debate unlike anything seen online before. Posted in 2015, the image caused people to argue intensely over whether the dress Watch the dress change from Black & Blue to White & Gold right in front of your eyes by P Van Medium 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 What Color is this dress, Blue & Black or White & Gold? Perception Explained: Why We See things Differently., This 2015 photo broke the internet by revealing something wild about how your brain 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 The color doesn't matter the dress is ugly CNN