ΔE 16.6, loose: different enough that you should pick on purpose. Warp Lightning is a little darker, more saturated, cooler than Matt Bile Green. They are different kinds of paint: AMMO by Mig Matt Bile Green is an ink, glaze or transparent paint and Citadel Warp Lightning is a one-coat contrast-style paint, so they won’t behave the same on the model even where the colour is close.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Warp Lightning is a little darker, more saturated, cooler than Matt Bile Green. They are different kinds of paint.
The same difference applies the other way round: Matt Bile Green is a little lighter, more muted, 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 Matt Bile Green on the colour wheel See Warp Lightning on the colour wheel
All matches: Matt Bile Green equivalents · Warp Lightning equivalents