Got myself a Noxious Force, Tried to make a new texture set, but none of the colours in the toribash colour swatch match it, tried Noxious, Copper and Sphinx but none of them match, anyone got the RGB for Noxious?

Check here.

Tried that, made a solid colour texture and it still doesn't match the force, not by any angle in any light :/

Does it make a difference if you disable shaders (if it's enabled)?

That makes it look even more different

The RGB on the swatches is correct, just the game's render tends to display them incorrectly.