Like running, it can take place on a track or as a road race. The main competitions take place at the Summer Paralympics which wheelchair racing and athletics has been a part of since 1960. Competitors compete in specialized wheelchairs which allow the athletes to reach speeds of 30 km/h or more.
Hue is one of the main properties (called color appearance parameters) of a color, defined technically (in the CIECAM02 model), as the degree to which a stimulus can be described as similar to or different from stimuli that are described as red, green, blue, and yellow  (the unique hues).
Keep in mind that too much color vibration and intensity can be hard to look at. What is intensity? Again, when we speak of the intensity of any given color we refer to its brightness or dullness. The intensity scale is made up of hue and tone. Hue is when a color is fully saturated, meaning it has not been neutralized by its compliment. We can call these colors that have the highest possible level of saturation pure hues.