The RLM82 colour should be the FS34138. It was named Grun or Hellgrun (Green or Light Green ) .The FS34096 matches the RLM83 called the Dunkelgrun what translates into the Dark Green. The RLM83 was the darker paint of the olive hue. The RLM83 was applied as the fist camo coat usually. The RLM82 and RLM81 were applied as the second dope. Because the RLM83 was the dark background, the tinge of the RLM82 could have become also darker. Especially that the RLM82 was applied as a thin layer. But in fact the paint was still the light green colour.
Equating one paint standard (RLM) to another (FS) can only ever be an approximation at best. They are not equivalent.
RLM 82 was nonetheless a fairly bright and distinctly green colour.
In the light of recent research our understanding of RLM 81 and 83 has changed.. What has changed since those paint charts were made is that RLM 81 comprises all those variations, INCLUDING what was previously thought of as RLM 83. The olive/green version of RLM 81 has been wrongly considered as a completely different colour (RLM 83).
RLM 83 was in fact a blue colour, used in the MTO and elsewhere as part of a maritime camouflage scheme.
What this means is that you can still use your model paints labelled RLM 82 and 83, but what you are really applying is the standard 81/82 scheme, just with the greener version of RLM 81.
I recently completed a model of a Dornier Do 335. The required colours as per original Dornier documents were RLM 81 and 82, however BOTH are described as 'dunkelgrun' in those documents. Nobody with normal colour vision could describe the olive/brown version of RLM 81 as 'dunkelgrun', indeed Messerschmitt described it, accurately, as 'braunviolet', others as 'olivbraun'. This is because the version of RLM 81 they are describing was indeed a brown colour whereas that described by Dornier was an olive green colour. It is all RLM 81.
Cheers
Steve