Emerald Metallic Green vs Dusken Green

How close are they?

ΔE 27.8, loose: different enough that you should pick on purpose. Dusken Green is noticeably lighter, more muted, warmer than Emerald Metallic Green.

Can I use Dusken Green instead of Emerald Metallic Green?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 28). Dusken Green is noticeably lighter, more muted, warmer than Emerald Metallic Green.

Can I use Emerald Metallic Green instead of Dusken Green?

The same difference applies the other way round: Emerald Metallic Green is noticeably darker, 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.