Ryn Flesh vs Rosy Flesh

How close are they?

ΔE 24.5, loose: different enough that you should pick on purpose. Rosy Flesh is noticeably darker, much more saturated than Ryn Flesh.

Can I use Rosy Flesh instead of Ryn Flesh?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 25). Rosy Flesh is noticeably darker, much more saturated than Ryn Flesh.

Can I use Ryn Flesh instead of Rosy Flesh?

The same difference applies the other way round: Ryn Flesh 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.