ΔE 9.6, close: similar, with a visible difference side by side. Gorgon Brown is a little lighter, more saturated, warmer than Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Gorgon Brown is a little lighter, more saturated, warmer than Brown.
The same difference applies the other way round: Brown is a little darker, more muted, 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 Brown on the colour wheel See Gorgon Brown on the colour wheel
All matches: Brown equivalents · Gorgon Brown equivalents