ΔE 9.1, close: similar, with a visible difference side by side. Wolf Grey is more muted, cooler than Russ Grey.
✓ Two Thin Coats comparison chart lists these two as equivalents.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Wolf Grey is more muted, cooler than Russ Grey.
The same difference applies the other way round: Russ Grey is 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 Russ Grey on the colour wheel See Wolf Grey on the colour wheel
All matches: Russ Grey equivalents · Wolf Grey equivalents