Chromaticity

Okay kiddo, do you know what colors are? They're the things we see when light shines on an object and some of that light bounces back into our eyes.

Now, chromaticity is a way that scientists and engineers describe colors more precisely. They use something called the CIE chromaticity diagram to do this.

Imagine a triangle with three points on it. These three points represent the three primary colors of light: red, green, and blue. When these three colors are combined together in different amounts, we can make any other color we want.

The CIE chromaticity diagram shows all the colors we can see by mixing different amounts of red, green, and blue light.

Scientists and engineers like to use chromaticity to talk about things like the "color temperature" of light. This is how "warm" or "cool" the light looks. For example, a sunset looks warm because it's reddish-orange, while a clear blue sky looks cool because it's bluish-green.

So chromaticity helps us describe colors more accurately and talk about things like the color of light in a way that's easy to understand!