Investigation: Making Color with Light
We spend years in elementary school learning how to mix paints to create a desired color. Mixing all of the paints together made a dark color–black, dark brown, dark gray. Yet this doesn't happen with colors of light. A rainbow of colors of light makes white light. Proof? A beam of white sunlight passing through a prism creates a rainbow of color.
A digital image is made up of millions of colored light intensity measurements. The colors? Red, green, and blue. This investigation has a series of activities to help you get a working knowledge of how intensities of red, green, and blue light may be combined to make millions of colors.
See example of a color space using red, green, and blue light.

Activities to Explore Colors:
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