Dechala Lilac vs Light Violet

How close are they?

ΔE 8.2, close: similar, with a visible difference side by side. Light Violet is a little darker, cooler than Dechala Lilac.

Can I use Light Violet instead of Dechala Lilac?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). Light Violet is a little darker, cooler than Dechala Lilac.

Can I use Dechala Lilac instead of Light Violet?

The same difference applies the other way round: Dechala Lilac is a little lighter, 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.