ΔE 10.7, fair: the same colour family, but not a straight swap. Warp Lightning is more muted than Ghillie Dew.
✓ Herrick Games paint comparison chart lists these two as equivalents.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Warp Lightning is more muted than Ghillie Dew.
The same difference applies the other way round: Ghillie Dew is more saturated.
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 Ghillie Dew on the colour wheel See Warp Lightning on the colour wheel
All matches: Ghillie Dew equivalents · Warp Lightning equivalents