Reddish Flesh vs Dark Rose

How close are they?

ΔE 9.4, close: similar, with a visible difference side by side. Dark Rose is a little darker, more muted than Reddish Flesh.

Can I use Dark Rose instead of Reddish Flesh?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Dark Rose is a little darker, more muted than Reddish Flesh.

Can I use Reddish Flesh instead of Dark Rose?

The same difference applies the other way round: Reddish Flesh is a little lighter, 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.