ΔE 8.3, close: similar, with a visible difference side by side. Phthalo Green (Blue Shade) is a little lighter, cooler than Exile Green. They are different kinds of paint: Army Painter Exile Green is an opaque base/layer paint and Golden Phthalo Green (Blue Shade) 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 8). Phthalo Green (Blue Shade) is a little lighter, cooler than Exile Green. They are different kinds of paint.
The same difference applies the other way round: Exile Green is a little darker, warmer.
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 Exile Green on the colour wheel See Phthalo Green (Blue Shade) on the colour wheel
All matches: Exile Green equivalents · Phthalo Green (Blue Shade) equivalents