ΔE 6.5, close: similar, with a visible difference side by side. Light Magenta is a little lighter, more saturated than Talisman Purple. They are different kinds of paint: Army Painter Talisman Purple is an opaque base/layer paint and Golden Light Magenta is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Light Magenta is a little lighter, more saturated than Talisman Purple. They are different kinds of paint.
The same difference applies the other way round: Talisman Purple is a little darker, more muted.
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 Talisman Purple on the colour wheel See Light Magenta on the colour wheel
All matches: Talisman Purple equivalents · Light Magenta equivalents