ΔE 8.4, close: similar, with a visible difference side by side. Stormvermin Fur is more saturated, warmer than RLM 81 Version 1.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Stormvermin Fur is more saturated, warmer than RLM 81 Version 1.
The same difference applies the other way round: RLM 81 Version 1 is more muted, 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 81 Version 1 on the colour wheel See Stormvermin Fur on the colour wheel
All matches: RLM 81 Version 1 equivalents · Stormvermin Fur equivalents