Char 2C colour?

Greetings friends!

I’m in the process of dressing up the shelf-queens and the time has come for the Char 2C.

Does anyone know the ”correct” green colour to use?
I have seen suggestions of Vallejo 71.015 Olive Brown which is which is quite close to Tamiya OD. Others have suggested slightly lightened Tamiya XF-58 Olive Green. There is quite a big difference between these greens so what is the most correct colour acvording to you who know french tanks?