Did you ever wonder if the blue you see is the same the others see? Well, this test will not really give you that answer, but can certainly help you evaluate how you see colors and its subtle changes.
Access thissite and try the browser based test. It looks like a game and will evaluate your accuracy to identify colors.
Please come back and write your results in this post!
Monitor calibration is among the most important things you should do to improve your post processing of images (photo or video). Dedicating some time to do this correctly is of the utmost importance!