Japanese army green gray

My current bulid is the Hasegawa KI-84 Hayate in 1/32 scale and I need to confirm as to what colour gray green is for the underside of the aircraft . My thoughts are Tamiya J.A Grey XF-I4 .

The kit number is 08074 if anyone else has built this kit . So far a most enjoyable build ,thanks everyone for the advise in advance.

Pixilater- Enjoying the rufe, love that plane

Cheers Sushi