ΔE 8.6, close: similar, with a visible difference side by side. Waystone Green is more saturated, warmer than Jade Green. They are different kinds of paint: AK Interactive Jade Green is an opaque base/layer paint and Citadel Waystone Green is a technical paint or medium, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Waystone Green is more saturated, warmer than Jade Green. They are different kinds of paint.
The same difference applies the other way round: Jade Green is more muted, cooler.
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 Jade Green on the colour wheel See Waystone Green on the colour wheel
All matches: Jade Green equivalents · Waystone Green equivalents