Piggy Purple Ink vs Ink Violet

How close are they?

ΔE 11.3, fair: the same colour family, but not a straight swap. Ink Violet is noticeably darker than Piggy Purple Ink.

Can I use Ink Violet instead of Piggy Purple Ink?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Ink Violet is noticeably darker than Piggy Purple Ink.

Can I use Piggy Purple Ink instead of Ink Violet?

The same difference applies the other way round: Piggy Purple Ink is noticeably lighter.

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.