lostagain - thanks, glad you enjoyed the Spruce and look forward to seeing yours.
For colour inspiration, I had found this painting:
Nick Millman's blog, Aviation of Japan, has a write up on Japanese trainer colour. There doesn't seem to be a clear shade, but after reading it, I came away thinking it should probably be lighter (towards the yellow spectrum) compared to how most people interpret it. He also has a free pdf file dealing with the subject, but he never got back to me with an email response. All of that can be found here:
http://www.aviationofjapan.com/2012_02_01_archive.html
In the end, I just eyeballed a 50/50 acrylic mix using the paints below:
For the brown portions, I relied on Tamiya's XF-10 brown. It's possible, as Cliff mentions, that it matched the brown used on propellers. I didn't find any info at all for a suggested brown.
---------------------------------------------------------------------
This group continues to produce very fine work on the Japanese theme. My compliments to all the latest finishes.
regards,
Jack