Wazdakka Red vs Hellspawn Red

How close are they?

ΔE 24.0, loose: different enough that you should pick on purpose. Hellspawn Red is a little lighter, more saturated, warmer than Wazdakka Red.

Can I use Hellspawn Red instead of Wazdakka Red?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 24). Hellspawn Red is a little lighter, more saturated, warmer than Wazdakka Red.

Can I use Wazdakka Red instead of Hellspawn Red?

The same difference applies the other way round: Wazdakka Red is a little darker, 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.