ΔE 13.0, fair: the same colour family, but not a straight swap. Clear Purple is a little darker, more saturated, warmer than Shyish Purple. They are different kinds of paint: Citadel Shyish Purple is a one-coat contrast-style paint and Reaper Clear Purple is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Clear Purple is a little darker, more saturated, warmer than Shyish Purple. They are different kinds of paint.
The same difference applies the other way round: Shyish Purple is a little lighter, more muted, 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 Shyish Purple on the colour wheel See Clear Purple on the colour wheel
All matches: Shyish Purple equivalents · Clear Purple equivalents