Mocca Skin vs Thornwood Green

How close are they?

ΔE 18.1, loose: different enough that you should pick on purpose. Thornwood Green is a little darker, cooler than Mocca Skin.

Can I use Thornwood Green instead of Mocca Skin?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Thornwood Green is a little darker, cooler than Mocca Skin.

Can I use Mocca Skin instead of Thornwood Green?

The same difference applies the other way round: Mocca Skin is a little lighter, warmer.

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.