It shows three wavelengths correct atleast :P
I still remeber when I first realized that white color from the pc-monitor is not white.
I still remeber when I first realized that white color from the pc-monitor is not white.
The best I can do, having studied Color Science at RIT, is that white is any spectral power distribution a person identifies as white. Yes, it’s a circular definition.
The topic is deeper than it might seem. I can put someone in a room and show them a color they would swear to be white. And then, in an instant, I can change that color by changing the surround, what you see peripherally. It’s freaky.
https://www.amazon.com/Appearance-Models-Imaging-Science-Tec...
I went looking around to see if I could find a better resource to help you dive into the topic in a more accessible manner. To my surprise Khan Academy seems to have a decent sequence of lectures on Color Science. I didn't watch the videos but the topics cover a reasonable portion of the basic knowledge one needs to start exploring Color Science: