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 How I Flipped My Brain's View of the Black and Blue Dress Jeff Greenhouse 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 Short Fitted Casual Dresses Womens Dresses Fitted Little Black Dress Womens Dresses Black The Evolution of the Little Black Dress Little Black Dress Through History