Debate rages over color of dress photographed in rare light 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 Why nobody could agree on the color of that dress on X 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 Optical illusion: Dress colour debate goes global BBC News