ΔE 17.6, loose: different enough that you should pick on purpose. Dusken Green is noticeably lighter, more muted than Carapace Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Dusken Green is noticeably lighter, more muted than Carapace Green.
The same difference applies the other way round: Carapace Green is noticeably darker, 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 Carapace Green on the colour wheel See Dusken Green on the colour wheel
All matches: Carapace Green equivalents · Dusken Green equivalents