ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive Prom Dress Style #32528 La Femme Ladivine CC8884 Sweetheart Neck Beaded Corset Bodice Dress In 2015, a photograph of a dress went viral, dividing viewers over whether its colors were blue and black or white and gold. This optical illusion highlighted differences in human color perception This is just incredible. Both dresses on the shaded area (right side) are identical in color.