Here Is Proof That #TheDress is Black and Blue so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions 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 Original Penguin Women's Veronica Sleeveless Golf Dress in Black Iris Blue, Size Small Is That Dress White and Gold or Blue and Black? The New York Times The dress 10 years later: Is viral dress black and blue or white and gold? kgw.com