Eidolon Purple Clear vs Spectral Purple

How close are they?

ΔE 21.1, loose: different enough that you should pick on purpose. Spectral Purple is noticeably lighter, much more muted, warmer than Eidolon Purple Clear.

Can I use Spectral Purple instead of Eidolon Purple Clear?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Spectral Purple is noticeably lighter, much more muted, warmer than Eidolon Purple Clear.

Can I use Eidolon Purple Clear instead of Spectral Purple?

The same difference applies the other way round: Eidolon Purple Clear is noticeably darker, much 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.