ΔE 17.2, loose: different enough that you should pick on purpose. Lime Green is more muted, warmer than Nymph Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Lime Green is more muted, warmer than Nymph Green.
The same difference applies the other way round: Nymph Green is more saturated, cooler.
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 Nymph Green on the colour wheel See Lime Green on the colour wheel
All matches: Nymph Green equivalents · Lime Green equivalents