Cadian Fleshtone vs Elf Skin Tone

How close are they?

ΔE 7.0, close: similar, with a visible difference side by side. Elf Skin Tone is a little darker, more saturated than Cadian Fleshtone.

Can I use Elf Skin Tone instead of Cadian Fleshtone?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Elf Skin Tone is a little darker, more saturated than Cadian Fleshtone.

Can I use Cadian Fleshtone instead of Elf Skin Tone?

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