ΔE 8.0, close: similar, with a visible difference side by side. Rootpath is a little darker, cooler than Field Drab.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Rootpath is a little darker, cooler than Field Drab.
The same difference applies the other way round: Field Drab is a little lighter, warmer.
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 Field Drab on the colour wheel See Rootpath on the colour wheel
All matches: Field Drab equivalents · Rootpath equivalents