Grim Black vs Basilisk Green

How close are they?

ΔE 13.4, fair: the same colour family, but not a straight swap. Basilisk Green is noticeably lighter, more saturated than Grim Black.

Can I use Basilisk Green instead of Grim Black?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Basilisk Green is noticeably lighter, more saturated than Grim Black.

Can I use Grim Black instead of Basilisk Green?

The same difference applies the other way round: Grim Black is noticeably darker, more muted.

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.