ΔE 24.3, loose: different enough that you should pick on purpose. Angel Green is noticeably darker, more muted, cooler than Nature Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Angel Green is noticeably darker, more muted, cooler than Nature Green.
The same difference applies the other way round: Nature Green is noticeably 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 Nature Green on the colour wheel See Angel Green on the colour wheel
All matches: Nature Green equivalents · Angel Green equivalents