Optical illusion renews blue and black dress debate nine years on Express.co.uk ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive White Hologram Sequin Glitter Stretch Jersey Stretch Tulle Prom Dresses Rachel Allan Happy 10th anniversary to the original photograph of "The Dress" and the subsequent internet debate over white and gold or black and blue : r popculturechat