ΔE 9.9, close: similar, with a visible difference side by side. Smoked Blue is a little lighter, warmer than Iron Wolf.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Smoked Blue is a little lighter, warmer than Iron Wolf.
The same difference applies the other way round: Iron Wolf is a little darker, cooler.
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 Iron Wolf on the colour wheel See Smoked Blue on the colour wheel
All matches: Iron Wolf equivalents · Smoked Blue equivalents