ΔE 6.5, close: similar, with a visible difference side by side. Golden Brown is a little darker, more muted than Brown (JGSDF).
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Golden Brown is a little darker, more muted than Brown (JGSDF).
The same difference applies the other way round: Brown (JGSDF) is a little lighter, more saturated.
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 (JGSDF) on the colour wheel See Golden Brown on the colour wheel
All matches: Brown (JGSDF) equivalents · Golden Brown equivalents