http://www.largescaleplanes.com/Works/MatsumotoNaoto/Zero.htm
I just finished the Tamiya 1:48 Zero nick named "Hank". Their interior directions call for a metallic blue. I forget the number but it is a blue green color. Looks really good. I just thought that was an odd color for a fighter. I then found the above website. It appears Tamiya may actually be incorrect. Here it appears that the interior is a chromate or interior green. Also, the cowl is usually painted black. This person suggests it is a dark blue color. Interesting!