ΔE 10.0, close: similar, with a visible difference side by side. Bright Neutral Grey is a little lighter, more muted than Gargoyle Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Bright Neutral Grey is a little lighter, more muted than Gargoyle Grey.
The same difference applies the other way round: Gargoyle 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 Gargoyle Grey on the colour wheel See Bright Neutral Grey on the colour wheel
All matches: Gargoyle Grey equivalents · Bright Neutral Grey equivalents