ΔE 7.8, close: similar, with a visible difference side by side. Russ. AF Grey N.8 is more muted, cooler than Whale Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Russ. AF Grey N.8 is more muted, cooler than Whale Grey.
The same difference applies the other way round: Whale 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 Whale Grey on the colour wheel See Russ. AF Grey N.8 on the colour wheel
All matches: Whale Grey equivalents · Russ. AF Grey N.8 equivalents