ΔE 7.7, close: similar, with a visible difference side by side. Light Violet is a little lighter, cooler than Purple.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Light Violet is a little lighter, cooler than Purple.
The same difference applies the other way round: Purple is a little darker, 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.
See Purple on the colour wheel See Light Violet on the colour wheel
All matches: Purple equivalents · Light Violet equivalents