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 The world's most famous optical illusion turns 10 years old Creative Bloq What colour is the dress? Science explains why no one can work out what colour that damn dress is Metro News Black and blue, or white and gold? 'The dress' turns 10 years old WFLA Here's why people saw the dress differently.