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 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 Sexy Women Mermaid Black Evening Dresses Long Sleeve Gold Lace Applique Gold Sequin with Black Lining Long Sleeve Prom Dress VQ Strapless Floral Detail Dress Black Gold Blue Dress Vs Black Dress