ΔE 21.0, loose: different enough that you should pick on purpose. Dusken Green is much more muted, cooler than Scarab.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Dusken Green is much more muted, cooler than Scarab.
The same difference applies the other way round: Scarab is much 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 Scarab on the colour wheel See Dusken Green on the colour wheel
All matches: Scarab equivalents · Dusken Green equivalents