Colors
Additive Light - RGB - Red Green Blue
The (agreed upon) base colors red green and blue add up to white.
![Additive Color](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e8/AdditiveColorMixiing.svg/500px-AdditiveColorMixiing.svg.png)
Source Commons.wikimedia.org AdditiveColorMixiing.svg
Subtractive Light - CMY - Cyan Magenta Yellow
Objects subtract colors from light (white background). For example, a magenta object subtracts cyan and yellow. Subtracting all colors results in black.
![Subtractive Colors](https://upload.wikimedia.org/wikipedia/commons/thumb/5/59/CMY_ideal_version.svg/500px-CMY_ideal_version.svg.png)