Royal Blue Prom Dress With Slit Wedtrend Women Royal Blue Prom Dress Mermaid Sparkly Long Corset I've been thinking about "the dress" for 10 years. Here's what I've learned. BABARONI Satin Sky Blue Prom Dresses A line Strapless Sequins Sweep Brush Train What color is the dress? Why do some people see blue and black and some people see gold and white when looking at a single image of a dress? : r askscience