The code for Keswick Green is LRC799.
1. If you go to a reputable paint supplier with this they should be able to mix that for you.
2. The other way is to get a paint chip for the supplier to do a colour match on.
3. Failing that borrow a set of RAL colour cards and hold them up to a Keswick painted Defender to get the closest match.
We've used a firm called SuperTune Automotive quite a lot. Nearest branch to you would be in Castle Donington though which is a fair distance from
Vale of Belvoir.
Another thread mentioned "RAL codes 6019 & 6021 are close (ish)". I understand the 4 digit RAL code can have say .1 .2 through to .9 behind it - all will be slightly different shades BUT all the same 4 digit code.
Do you actually need a RAL code? With the Land Rover Code can't you just get that mixed?