Color is added to the image-creation process either through a spinning color wheel (used with a single-chip projector) or a three-chip (red, green, blue) projector.
As such, a painter's color wheel is indicative rather than predictive, being used to compare existing colors rather than calculate exact colors of mixtures.
For instance, some reserve the term "color wheel" for mechanical rotating devices, such as color tops or filter wheels.
Each note corresponds to a specific degree of the color wheel.
These colors are opposites on the color wheel.
The fully saturated colors of each hue then lie in a circle, a color wheel.
The illustration shows a simple color wheel based on the additive colors.
In the color wheel historically used by painters, it is located between blue and purple.
