The Blue and Gold Dress Auroratide Is This Dress Blue And Black Or White And Gold? Here's What The Experts Say The Dress is now a Halloween costume 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 Gold and white or blue and black?' optical illusion dress from 2015 found at yard sale 9Honey