Lilac Purple vs Squid Pink

How close are they?

ΔE 17.9, loose: different enough that you should pick on purpose. Squid Pink is noticeably lighter, more saturated, warmer than Lilac Purple.

Can I use Squid Pink instead of Lilac Purple?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Squid Pink is noticeably lighter, more saturated, warmer than Lilac Purple.

Can I use Lilac Purple instead of Squid Pink?

The same difference applies the other way round: Lilac Purple is noticeably darker, 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.