Other examples like that of the blue and black white and gold skirt? This about a same thing being perceived differently by different sets of people. : r cogsci ELI5:Why does this dress appear white gold to some people and black blue to others? : r explainlikeimfive Elegant High Neck Dusty Rose Long Bridesmaid Dress FancyVestido Dusty Rose Velvet Bridesmaid Dress Mermaid Maxi Long Sleeve Off the Shoulder Carlyna so we know the dress was black and blue BUT that's not what i'm here to discuss : r opticalillusions