Evil Chrome vs Castellax Bronze

How close are they?

ΔE 18.8, loose: different enough that you should pick on purpose. Castellax Bronze is a little lighter, much more saturated than Evil Chrome.

Can I use Castellax Bronze instead of Evil Chrome?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Castellax Bronze is a little lighter, much more saturated than Evil Chrome.

Can I use Evil Chrome instead of Castellax Bronze?

The same difference applies the other way round: Evil Chrome is a little darker, much more muted.

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.