Purple People Eater vs Royal Blue

How close are they?

ΔE 9.5, close: similar, with a visible difference side by side. Royal Blue is cooler than Purple People Eater.

Can I use Royal Blue instead of Purple People Eater?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Royal Blue is cooler than Purple People Eater.

Can I use Purple People Eater instead of Royal Blue?

The same difference applies the other way round: Purple People Eater is 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.