ΔE 7.7, close: similar, with a visible difference side by side. Data System Glow is a little lighter than Luminous Green INK. They are different kinds of paint: AK Interactive Luminous Green INK is an ink, glaze or transparent paint and Army Painter Data System Glow is an opaque base/layer 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). Data System Glow is a little lighter than Luminous Green INK. They are different kinds of paint.
The same difference applies the other way round: Luminous Green INK 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 Luminous Green INK on the colour wheel See Data System Glow on the colour wheel
All matches: Luminous Green INK equivalents · Data System Glow equivalents