Crusader Skin vs Phoenix Egg

How close are they?

ΔE 20.2, loose: different enough that you should pick on purpose. Phoenix Egg is a little lighter, more muted, cooler than Crusader Skin.

Can I use Phoenix Egg instead of Crusader Skin?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 20). Phoenix Egg is a little lighter, more muted, cooler than Crusader Skin.

Can I use Crusader Skin instead of Phoenix Egg?

The same difference applies the other way round: Crusader Skin is a little darker, more saturated, 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.