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 The Dress Debate SETTLED: Black And Blue Or White And Gold? TODAY The Science of Why No One Agrees on the Color of This Dress WIRED ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive Optical illusion dress inspires Halloween outfit in blue, black, white and gold Daily Mail Online How "The Dress" Became an Illusion Unlike Any Other Scientific American