Module 03 · Additive color
The RGB Light Laboratory
Screens, stage lights, and stars all mix color additively — beams of red, green, and blue light overlapping until they reach white. Adjust the three projectors and watch their overlaps form cyan, magenta, yellow, and pure light.
Drag a spotlight by its center handle to reposition it; use the arrow keys once a handle is focused.
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R + G
Red and green light combine to make yellow — a fact that surprises painters.
G + B
Green and blue overlap to make cyan, the color of shallow tropical water.
R + B
Red and blue together form magenta — a color absent from the rainbow.