ΔE 15.0, fair: the same colour family, but not a straight swap. Hierotek Green is noticeably darker, warmer than Pharaoh Guard.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Hierotek Green is noticeably darker, warmer than Pharaoh Guard.
The same difference applies the other way round: Pharaoh Guard is noticeably lighter, 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 Pharaoh Guard on the colour wheel See Hierotek Green on the colour wheel
All matches: Pharaoh Guard equivalents · Hierotek Green equivalents