Baal Red vs Cardinal Purple

How close are they?

ΔE 8.2, close: similar, with a visible difference side by side. Cardinal Purple is more muted than Baal Red.

Can I use Cardinal Purple instead of Baal Red?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Cardinal Purple is more muted than Baal Red.

Can I use Baal Red instead of Cardinal Purple?

The same difference applies the other way round: Baal Red is 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.