ΔE 5.7, very close: most people won’t see a difference side by side. Gorthor Brown is a little darker, warmer than RAF Dark Earth.
Yes, for most jobs. Very close match (ΔE 6). Gorthor Brown is a little darker, warmer than RAF Dark Earth.
The same difference applies the other way round: RAF Dark Earth is a little lighter, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See RAF Dark Earth on the colour wheel See Gorthor Brown on the colour wheel
All matches: RAF Dark Earth equivalents · Gorthor Brown equivalents