Purple Bridesmaid Dresses Birdy Grey Formal Dress: 27583. Short, Illusion Neckline, Straight Alyce Paris ALYCE Paris ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive Eggplant Bridesmaid Dresses Rich, Bold, Elegant Purple Dress Styles 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