Pastel Lavender vs Grey Spell

How close are they?

ΔE 22.9, loose: different enough that you should pick on purpose. Grey Spell is noticeably darker, more muted, cooler than Pastel Lavender.

Can I use Grey Spell instead of Pastel Lavender?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 23). Grey Spell is noticeably darker, more muted, cooler than Pastel Lavender.

Can I use Pastel Lavender instead of Grey Spell?

The same difference applies the other way round: Pastel Lavender is noticeably lighter, more saturated, warmer.

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.