We had a good discussion of this subject a few years ago. Here’s the thread: cs.finescale.com/…/99738.aspx
My opinions on the subject haven’t changed. I have the deepest respect for the folks who’ve done such high-powered research on authentic colors. Their work provides an essential basis for serious scale modeling. But just what is the “right” color for a model is affected by all sorts of factors - including size, the “scale effect,” lighting, and various other considerations. I long ago gave up on any simple system of determining “the” right colors. To my notion, scale modeling involves finding out as much as possible about the prototype, and figuring out, according to your definitions and judgment, how best to interpret the evidence in order to produce an authentic representation of that prototype.