ΔE 10.1, fair: the same colour family, but not a straight swap. Scarab Green is a little darker, more muted, cooler than Turquoise.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 10). Scarab Green is a little darker, more muted, cooler than Turquoise.
The same difference applies the other way round: Turquoise is a little lighter, more saturated, warmer.
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 Turquoise on the colour wheel See Scarab Green on the colour wheel
All matches: Turquoise equivalents · Scarab Green equivalents