Conversation

Huh, the things you learn during #NESdev. The three primary colours, red, green, and blue, are not perceived as equally bright. The #luminance is a measure of how bright we perceive all three together! Blue is brightest, then red, and green is dimmest.

https://en.wikipedia.org/wiki/Relative_luminance

I mostly just needed this so I could label the NES palette with their hex indices:

http://inversethought.com/hg/tilerswift/rev/9e372d3eb091