Encarmine Red vs Asmodeus Red

How close are they?

ΔE 23.8, loose: different enough that you should pick on purpose. Asmodeus Red is noticeably lighter, much more muted than Encarmine Red.

Can I use Asmodeus Red instead of Encarmine Red?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Asmodeus Red is noticeably lighter, much more muted than Encarmine Red.

Can I use Encarmine Red instead of Asmodeus Red?

The same difference applies the other way round: Encarmine Red is noticeably darker, much more saturated.

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.