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 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 Why the world couldn't agree on the color of 'the dress' New York Post Viral online dress debate turns 10. What colours do you see? Is The Dress blue and black or white and gold? The answer lies in vision psychology Psychology The Guardian The dress 10 years later: Is viral dress black and blue or white and gold? abc10.com