The outer rung on the intensity Color Wheel and the third rung on the Value Color Wheel are the fully saturated colors. As the colors on the Intensity Color Wheel get closer to the center the colors get greyer and greyer until no color is visible with the naked eye. As the color gets greyer it gets lighter. For the Value Color Wheel as the colors get closer to the center more white is added making the colors look lighter. On the other hand, the colors get darker as they move out from the fully saturated colors.