ΔE 5.6, very close: most people won’t see a difference side by side. Stormvermin Fur is a little darker, more saturated than Reddish Grey.
Yes, for most jobs. Very close match (ΔE 6). Stormvermin Fur is a little darker, more saturated than Reddish Grey.
The same difference applies the other way round: Reddish Grey is a little lighter, 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 Reddish Grey on the colour wheel See Stormvermin Fur on the colour wheel
All matches: Reddish Grey equivalents · Stormvermin Fur equivalents