Periwinkle Purple vs Shyish Purple

How close are they?

ΔE 11.3, fair: the same colour family, but not a straight swap. Shyish Purple is a little darker, warmer than Periwinkle Purple.

Can I use Shyish Purple instead of Periwinkle Purple?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Shyish Purple is a little darker, warmer than Periwinkle Purple.

Can I use Periwinkle Purple instead of Shyish Purple?

The same difference applies the other way round: Periwinkle Purple is a little lighter, 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.