Grimoire Purple vs Dark Rose

How close are they?

ΔE 8.0, close: similar, with a visible difference side by side. Dark Rose is a little lighter, warmer than Grimoire Purple.

Can I use Dark Rose instead of Grimoire Purple?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Dark Rose is a little lighter, warmer than Grimoire Purple.

Can I use Grimoire Purple instead of Dark Rose?

The same difference applies the other way round: Grimoire Purple is a little darker, 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.