ΔE 12.0, fair: the same colour family, but not a straight swap. Scaly Highlight is noticeably lighter, more saturated than Pharaoh Guard.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Scaly Highlight is noticeably lighter, more saturated than Pharaoh Guard.
The same difference applies the other way round: Pharaoh Guard is noticeably darker, more muted.
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 Scaly Highlight on the colour wheel
All matches: Pharaoh Guard equivalents · Scaly Highlight equivalents