ΔE 24.7, loose: different enough that you should pick on purpose. Green is noticeably darker, much more muted, cooler than Warpstone Glow.
✓ Herrick Games paint comparison chart lists these two as equivalents.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Green is noticeably darker, much more muted, cooler than Warpstone Glow.
The same difference applies the other way round: Warpstone Glow is noticeably lighter, much more saturated, 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 Warpstone Glow on the colour wheel See Green on the colour wheel
All matches: Warpstone Glow equivalents · Green equivalents