ΔE 5.9, very close: most people won’t see a difference side by side. Gorgon Dark Green is more muted than Kroak Green. They are different kinds of paint: Citadel Kroak Green is a wash/shade and Green Stuff World Gorgon Dark Green is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Yes, for most jobs. Very close match (ΔE 6). Gorgon Dark Green is more muted than Kroak Green. They are different kinds of paint.
The same difference applies the other way round: Kroak 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 Kroak Green on the colour wheel See Gorgon Dark Green on the colour wheel
All matches: Kroak Green equivalents · Gorgon Dark Green equivalents