Ruddy Umber vs Antique Rose

How close are they?

ΔE 7.3, close: similar, with a visible difference side by side. Antique Rose is a little darker, cooler than Ruddy Umber.

Can I use Antique Rose instead of Ruddy Umber?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Antique Rose is a little darker, cooler than Ruddy Umber.

Can I use Ruddy Umber instead of Antique Rose?

The same difference applies the other way round: Ruddy Umber is a little lighter, warmer.

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.