ΔE 7.2, close: similar, with a visible difference side by side. Olive Drab 2314 is more saturated than Magnolia Brown.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Olive Drab 2314 is more saturated than Magnolia Brown.
The same difference applies the other way round: Magnolia Brown 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 Magnolia Brown on the colour wheel See Olive Drab 2314 on the colour wheel
All matches: Magnolia Brown equivalents · Olive Drab 2314 equivalents