Why did some people see a gold and white dress? Our Brain Dressgate: If you saw THAT dress as white your brain was working overtime The Dress: An Interactive Classroom Experiment by Andrew Robinson Precarious Physicist Medium 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 I've been thinking about "the dress" for 10 years. Here's what I've learned.