As far as I know, the Army paint colour has not changed from the Splity time to the Bedford time, so if you find the paint formulation for the old Bedfords (round nose) you have the correct shade.
By the way, the paint was matt, and you could not get it to shine with polish, it stayed matt. (for non reflectivity)
Here are the army spec's.
RSA-MIL-SPEC-104
PAINT, CAMOUFLAGE LOW REFLECTIVE, INVISIBLE AND IN 0,7 TO 2,8 MICRO
METRES SPECTRUM FOR LOW FLYING AIRCRAFT, MATERIAL (TYPE E)
SPECIFICATION
SCOPE
1. Scope
This specification covers the requirements for a camouflaging paint in the visible and 0,7 to
2,8 micro metres spectrum for application to SAAF low flying aircraft.
2. Classification
This specification covers coatings of the following colours:
COLOUR
I.C.N.
Dark Earth
8010-18-406-4085
Buffalo Green
8010-LA-106-6925
Buffalo Beige
8010-LA-116-2831
MRG Stone
8010-LA-115-7765
Olive Drab
8010-18-406-4084
More info here...
http://www.armscor.co.za/RMSS/RSA-MILS/RSAMils.asp
Hope this helps........
Herman