ΔE 11.0, fair: the same colour family, but not a straight swap. N8 Neutral Gray is a little lighter, more muted than Great Hall Grey.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). N8 Neutral Gray is a little lighter, more muted than Great Hall Grey.
The same difference applies the other way round: Great Hall Grey 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 Great Hall Grey on the colour wheel See N8 Neutral Gray on the colour wheel
All matches: Great Hall Grey equivalents · N8 Neutral Gray equivalents