Of course, my monitor isn't calibrated ^^" However, pure red will always appear brighter than non-pure red, even at the same luminance (~energy), which is what

Of course, my monitor isn't calibrated ^^" However, pure red will always appear brighter than non-pure red, even at the same luminance (~energy), which is what Helmholtz-Kohlrausch is about. IIRC pure red appears brighter than other pure colors as well at the same luminance level, but I am not sure how computer monitors interact will all of the above...