ΔE 7.6, close: similar, with a visible difference side by side. Camou. Pale Brown is more muted, warmer than Grey-Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Camou. Pale Brown is more muted, warmer than Grey-Brown.
The same difference applies the other way round: Grey-Brown is more saturated, 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 Grey-Brown on the colour wheel See Camou. Pale Brown on the colour wheel
All matches: Grey-Brown equivalents · Camou. Pale Brown equivalents