ΔE 6.1, close: similar, with a visible difference side by side. Deep Magenta is a little lighter, warmer than Phoenician Purple.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Deep Magenta is a little lighter, warmer than Phoenician Purple.
The same difference applies the other way round: Phoenician 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.
See Phoenician Purple on the colour wheel See Deep Magenta on the colour wheel
All matches: Phoenician Purple equivalents · Deep Magenta equivalents