ΔE 13.8, fair: the same colour family, but not a straight swap. Warp Lightning is a little lighter, more saturated, warmer than Forest Sprite.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Warp Lightning is a little lighter, more saturated, warmer than Forest Sprite.
The same difference applies the other way round: Forest Sprite is a little darker, more muted, cooler.
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 Forest Sprite on the colour wheel See Warp Lightning on the colour wheel
All matches: Forest Sprite equivalents · Warp Lightning equivalents