ΔE 8.0, close: similar, with a visible difference side by side. Eshin Grey is a little darker, more muted than Basalt Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Eshin Grey is a little darker, more muted than Basalt Grey.
The same difference applies the other way round: Basalt Grey is a little lighter, 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 Basalt Grey on the colour wheel See Eshin Grey on the colour wheel
All matches: Basalt Grey equivalents · Eshin Grey equivalents