Why did some people see a gold and white dress? Our Brain YouTube Gold and white or blue and black?' optical illusion dress from 2015 found at yard sale 9Honey Is the dress blue or gold? The phenomenon originated in a photograph of a dress posted on Facebook in 2015. The dress was black and blue, but the conditions of the photograph Ten years ago, a photo of a dress posted on Tumblr sparked a massive debate: was it blue and black or white and gold? Millions argued online, and even celebrities joined in. Scientists later explained