ΔE 12.9, fair: the same colour family, but not a straight swap. Sons of Horus Green is noticeably darker, more muted than Cold Green.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Sons of Horus Green is noticeably darker, more muted than Cold Green.
The same difference applies the other way round: Cold Green is noticeably lighter, 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 Cold Green on the colour wheel See Sons of Horus Green on the colour wheel
All matches: Cold Green equivalents · Sons of Horus Green equivalents