ΔE 6.8, close: similar, with a visible difference side by side. Plague Brown is more saturated than Golden Griffon.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Plague Brown is more saturated than Golden Griffon.
The same difference applies the other way round: Golden Griffon is more muted.
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 Golden Griffon on the colour wheel See Plague Brown on the colour wheel
All matches: Golden Griffon equivalents · Plague Brown equivalents