I can make this circle turn into different colors without changing its color at all. This circle is black and white, but if you spin it fast enough, it seemingly turns into a brownish red? (for me anyways) However, if you take a screenshot or you press the stop button, the color isn't there anymore. The beauty of this trick is how not everyone sees the same color, because as you know, everyone's eyes are different.
The strongest colors arrive at 90~ recreated from a site called michaelbach.de the bad sequel to colorless illusion 1. Finding good illusions are hard, you know??
