ΔE 6.4, close: similar, with a visible difference side by side. Earth is warmer than Green-Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Earth is warmer than Green-Brown.
The same difference applies the other way round: Green-Brown is 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 Green-Brown on the colour wheel See Earth on the colour wheel
All matches: Green-Brown equivalents · Earth equivalents