ΔE 9.4, close: similar, with a visible difference side by side. Hearthborn is a little lighter than Imperial Flesh.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Hearthborn is a little lighter than Imperial Flesh.
The same difference applies the other way round: Imperial Flesh is a little darker.
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.
See Imperial Flesh on the colour wheel See Hearthborn on the colour wheel
All matches: Imperial Flesh equivalents · Hearthborn equivalents