ΔE 8.7, close: similar, with a visible difference side by side. Rus. AF Grey Prot. Coat is a little lighter, more saturated than Wolven Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Rus. AF Grey Prot. Coat is a little lighter, more saturated than Wolven Grey.
The same difference applies the other way round: Wolven Grey is a little darker, 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 Wolven Grey on the colour wheel See Rus. AF Grey Prot. Coat on the colour wheel
All matches: Wolven Grey equivalents · Rus. AF Grey Prot. Coat equivalents