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 How I Flipped My Brain's View of the Black and Blue Dress Jeff Greenhouse 15 Stunning Eyeshadow Looks For Blue Dresses The Dress Illusion WHITE & GOLD BLUE & BLACK Bella Ballerina Giclee Canvas Wall Art Blue Lady Gaga Wears Blue Cinderella Dress to Golden Globes 2019 Red Carpet