Finally compiled all that I have on how to paint Japanese tanks with my best current color matches for the following colors:
Pre-1942 Khaki (Khaki-iro)
Pre-1942 Khaki (Khaki-iro) - Alternate
Pre-1942 Mahogany Brown (Tochi-iro)
"Pre-1942 Olive Green
(Midori-iro)"
Yellow (Disruptive Striping)
Post-1942 Khaki (Karekusa-iro)
Post-1942 Brown (Tochi-iro)
Post-1942 Olive Green (Tsutikusa-iro)
Post-1942 Green (Kusa-iro)
At this point I have Mr. Color, Ammo of MIG, Vallejo, Battlefront, and Tamiya equivalents worked out.
Full details and a handy color chart at: http://miniordnancerev.blogspot.com/2016/03/japanese-tank-painting-guide.html