Shiny Skintone vs Fairy Flesh

How close are they?

ΔE 9.9, close: similar, with a visible difference side by side. Fairy Flesh is a little lighter, more muted than Shiny Skintone.

Can I use Fairy Flesh instead of Shiny Skintone?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Fairy Flesh is a little lighter, more muted than Shiny Skintone.

Can I use Shiny Skintone instead of Fairy Flesh?

The same difference applies the other way round: Shiny Skintone is a little darker, more saturated.

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.