ΔE 35.6, loose: different enough that you should pick on purpose. Celestial Violet is more saturated, warmer than Enchantment Blue.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 36). Celestial Violet is more saturated, warmer than Enchantment Blue.
The same difference applies the other way round: Enchantment Blue is 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.
See Enchantment Blue on the colour wheel See Celestial Violet on the colour wheel
All matches: Enchantment Blue equivalents · Celestial Violet equivalents