ΔE 6.5, close: similar, with a visible difference side by side. Interior Green is more muted, warmer than RLM 80 Olive Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Interior Green is more muted, warmer than RLM 80 Olive Green.
The same difference applies the other way round: RLM 80 Olive Green 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 RLM 80 Olive Green on the colour wheel See Interior Green on the colour wheel
All matches: RLM 80 Olive Green equivalents · Interior Green equivalents