Theres a great modeller called TurkeyVolumeGuessingMan who also posted an unboxing video of the AT-ST over at Starship Modeller site
He translated the colour instructions too:
Body: Neutral Gray 45%, white 45%, black 5%, blue 5%
Pilot's uniform: RLM75 Gray violet 50%, white 50%, with a drop of black.
Pilot's helmet dark green (Mr. Hobby Aqueous color H73)
Pilot's belt: khaki green