ΔE 23.5, loose: different enough that you should pick on purpose. Celestial Violet is a little darker, cooler than Solar Anomalie.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 23). Celestial Violet is a little darker, cooler than Solar Anomalie.
The same difference applies the other way round: Solar Anomalie is a little lighter, 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.
See Solar Anomalie on the colour wheel See Celestial Violet on the colour wheel
All matches: Solar Anomalie equivalents · Celestial Violet equivalents