Color Circle is an online HTML5 game presented by yiv.com, it's playable in browsers such as safari and chrome. You can play the game on smartphone and tablet (iPhone, iPad, Samsung, Android devices and Windows Phone). How fast can you react? Color Circle can test your reaction and help you improve your react ability. You just need to click the screen when it turns to the right color. How many score can you get? Let's have a try! 65.77% of 113 players like the mobile game.