Looking for Japanese color codes

ModelMaster makes both a IJN & IJA Green, with the navy being the darker shade. They also make both the IJN & IJA grey. For the Blue Black , I usually just mix Black with Dark Sea Blue 50:50. Can't help you with the Tamiya or Polly Scale.

Regards, Rick

Thanks Rick, This helps alot. I use MM most of the time anyway.

Thad