ΔE 6.0, close: similar, with a visible difference side by side. Inktense Lime is a little lighter than Undergrowth Green. They are different kinds of paint: Army Painter Undergrowth Green is an opaque base/layer paint and Scale75 Inktense Lime is an ink, glaze or transparent paint, 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 6). Inktense Lime is a little lighter than Undergrowth Green. They are different kinds of paint.
The same difference applies the other way round: Undergrowth Green is a little darker.
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 Undergrowth Green on the colour wheel See Inktense Lime on the colour wheel
All matches: Undergrowth Green equivalents · Inktense Lime equivalents