ΔE 16.5, loose: different enough that you should pick on purpose. Eau de Nil “D.E.G.” is a little lighter, much more muted than Elven Green.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Eau de Nil “D.E.G.” is a little lighter, much more muted than Elven Green.
The same difference applies the other way round: Elven Green is a little darker, much 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 Elven Green on the colour wheel See Eau de Nil “D.E.G.” on the colour wheel
All matches: Elven Green equivalents · Eau de Nil “D.E.G.” equivalents