Mumuleo Navy Blue Quinceanera Dress with Gold Lace Appliques 10 years ago today, this dress was posted online, turning into a viral phenomenon. Viewers couldn't decide if the dress was blue and black, or white and gold. It was later confirmed Flora Appliqu Dress Sky Blue Ready To Ship 26 43" Blue and Ivory Print Midi Summer Dress with Buttons Ivory Blue Stripe Floral XSmall Optical illusion: Dress colour debate goes global BBC News ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive