Dechala Lilac vs Neo Pink

How close are they?

ΔE 23.6, loose: different enough that you should pick on purpose. Neo Pink is noticeably lighter, more muted, warmer than Dechala Lilac.

Can I use Neo Pink instead of Dechala Lilac?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Neo Pink is noticeably lighter, more muted, warmer than Dechala Lilac.

Can I use Dechala Lilac instead of Neo Pink?

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