ΔE 7.0, close: similar, with a visible difference side by side. Dark Green BS381C/641 is more muted than Scarab Green.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Dark Green BS381C/641 is more muted than Scarab Green.
The same difference applies the other way round: Scarab Green 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 Scarab Green on the colour wheel See Dark Green BS381C/641 on the colour wheel
All matches: Scarab Green equivalents · Dark Green BS381C/641 equivalents