ΔE 9.3, close: similar, with a visible difference side by side. Eshin Grey is more muted than RLM 81 Version 2.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Eshin Grey is more muted than RLM 81 Version 2.
The same difference applies the other way round: RLM 81 Version 2 is 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 RLM 81 Version 2 on the colour wheel See Eshin Grey on the colour wheel
All matches: RLM 81 Version 2 equivalents · Eshin Grey equivalents