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 Light Blue And Gold Dress Shop on Pinterest White and gold or blue and black? What colour is the dress? London Evening Standard The Standard Is This Dress Blue And Black Or White And Gold? Here's What The Experts Say TheDress: have researchers solved the mystery of its colour? Science The Guardian