In February 2015, a photo of a striped dress posted online unexpectedly turned into a worldwide argument. Some viewers swore it was blue and black, while others were convinced it was white ZAPAKA Women Green Plus Size Prom Dress with Slit Tulle A line Spaghetti Straps Appliqued Corset Long Party Dress with Sequins Women's Plus Size Sequin V Neck Glam Dress green CITY CHIC : Target Sydney's Closet Long Sleeve Sequin Cocktail Dress in Green Lyst Plus Size Dress Style #30307 La Femme 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