Eleven years ago, a single photo posted on Tumblr sparked one of the biggest internet debates of all time. The dress instantly divided the world, some swore it was white and gold, The Science of Why No One Agrees on the Color of This Dress WIRED 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 Blue And Gold Or White And Gold Dress Original Blue Black White Gold Dress Different Colors Is The Dress Badgley Mischka Sequined Mesh Gown In Turquoise ModeSens The white gold blue black Internet #dressgate: Stages of certainty,confusion, horror, and acceptance Rage Against The Minivan