Chris joins Leo to talk about a color in photography that doesn't exist: magenta. Chris says there is no magenta, and your brain invents the color shades in between the basic colors. On top of that, ten percent of people are color blind. You can mix colors sure, but its just mixed light in the spectrum. Each color has a wavelength in the visible spectrum. Magenta doesn't have a wavelength in the visible spectrum: it doesn't exist. But your mind makes it up when you mix colors together. It's called an extra spectral color.
Charles has an Asus laptop with Windows 8.1 and wants to know how to color calibrate it. He knows there are utilities on the computer to do it, but which setting should he use when watching Netflix? Leo says that they all essentially do the same thing. If he uses a monitor with a descent color profile, Windows will get it pretty close.
If he's a photographer, he may need to create his own color profile to get the colors he's looking for. That involves a calibrator. Charles should just make sure he has it set for the correct monitor, and that's all he will have to do.