ΔE 6.6, close: similar, with a visible difference side by side. Hull Red is a little lighter, more muted than NATO Black.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Hull Red is a little lighter, more muted than NATO Black.
The same difference applies the other way round: NATO Black is a little darker, 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 NATO Black on the colour wheel See Hull Red on the colour wheel
All matches: NATO Black equivalents · Hull Red equivalents