ΔE 7.7, close: similar, with a visible difference side by side. Stormvermin Fur is a little lighter, more muted, cooler than British Uniform Base.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Stormvermin Fur is a little lighter, more muted, cooler than British Uniform Base.
The same difference applies the other way round: British Uniform Base is a little darker, more saturated, warmer.
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 British Uniform Base on the colour wheel See Stormvermin Fur on the colour wheel
All matches: British Uniform Base equivalents · Stormvermin Fur equivalents