ΔE 7.9, close: similar, with a visible difference side by side. IJN Hull Color/Maizuru is more muted than Fenrisian Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). IJN Hull Color/Maizuru is more muted than Fenrisian Grey.
The same difference applies the other way round: Fenrisian Grey is more saturated.
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 Fenrisian Grey on the colour wheel See IJN Hull Color/Maizuru on the colour wheel
All matches: Fenrisian Grey equivalents · IJN Hull Color/Maizuru equivalents