Ratskin Flesh vs Red Glaze

How close are they?

ΔE 16.3, loose: different enough that you should pick on purpose. Red Glaze is noticeably lighter, more saturated than Ratskin Flesh. They are different kinds of paint: Citadel Ratskin Flesh is an opaque base/layer paint and Two Thin Coats Red Glaze is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.

Can I use Red Glaze instead of Ratskin Flesh?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Red Glaze is noticeably lighter, more saturated than Ratskin Flesh. They are different kinds of paint.

Can I use Ratskin Flesh instead of Red Glaze?

The same difference applies the other way round: Ratskin Flesh is noticeably darker, 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.