Kraken Skin vs Hunter Green

How close are they?

ΔE 23.9, loose: different enough that you should pick on purpose. Hunter Green is noticeably darker, much more saturated than Kraken Skin.

Can I use Hunter Green instead of Kraken Skin?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Hunter Green is noticeably darker, much more saturated than Kraken Skin.

Can I use Kraken Skin instead of Hunter Green?

The same difference applies the other way round: Kraken Skin is noticeably lighter, much more muted.

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.