Gladeshard vs Elven Green

How close are they?

ΔE 24.7, loose: different enough that you should pick on purpose. Elven Green is a little darker, much more muted than Gladeshard.

Can I use Elven Green instead of Gladeshard?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Elven Green is a little darker, much more muted than Gladeshard.

Can I use Gladeshard instead of Elven Green?

The same difference applies the other way round: Gladeshard is a little lighter, 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.