Highlight Flesh vs Hearthborn

How close are they?

ΔE 8.1, close: similar, with a visible difference side by side. Hearthborn is a little darker, more saturated than Highlight Flesh.

Can I use Hearthborn instead of Highlight Flesh?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Hearthborn is a little darker, more saturated than Highlight Flesh.

Can I use Highlight Flesh instead of Hearthborn?

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