This explains how the blue black white gold dress illusion was possible. But it doesn't explain why some people saw it one way and some saw it the other, and no one seemed to see The Dress Debate: Science Explains Why Some See Blue And Black And Others White And Gold How does a black and blue dress sometimes appear white and gold? The Brains Blog Blue black or white gold? The dress debate is over 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 Black and Blue or Gold and White? The truth behind the dress