Nude Skin vs Bag of Bones

How close are they?

ΔE 32.8, loose: different enough that you should pick on purpose. Bag of Bones is noticeably darker, more saturated, warmer than Nude Skin.

Can I use Bag of Bones instead of Nude Skin?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 33). Bag of Bones is noticeably darker, more saturated, warmer than Nude Skin.

Can I use Nude Skin instead of Bag of Bones?

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