Clear Blue vs Ink Violet

How close are they?

ΔE 20.5, loose: different enough that you should pick on purpose. Ink Violet is a little darker, much more muted, warmer than Clear Blue.

Can I use Ink Violet instead of Clear Blue?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Ink Violet is a little darker, much more muted, warmer than Clear Blue.

Can I use Clear Blue instead of Ink Violet?

The same difference applies the other way round: Clear Blue is a little lighter, much more saturated, 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.