Khardic Flesh vs Base Flesh

How close are they?

ΔE 18.1, loose: different enough that you should pick on purpose. Base Flesh is a little lighter, more muted, warmer than Khardic Flesh.

Can I use Base Flesh instead of Khardic Flesh?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Base Flesh is a little lighter, more muted, warmer than Khardic Flesh.

Can I use Khardic Flesh instead of Base Flesh?

The same difference applies the other way round: Khardic Flesh is a little darker, more saturated, cooler.

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.