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 Holly gold girl dress MyBabyByMerry White Gold Dress Illusion Black Blue Yellow White Dress Color Illusion Optical Illusion White And Gold Dress Vs Black And Blue Dressgate: If You Saw Sequin Girls Fashion Sequin Girls SHEIN USA Wedtrend Women Sparkly Golden Long Prom Dress with Slit Mermaid Spaghetti Straps Corset Evening Party Dress with Lace Up Back WEDTREND The Science Behind the Black and Blue (or White and Gold) Dress