Red Cloak vs Chameleon Orange

How close are they?

ΔE 15.7, loose: different enough that you should pick on purpose. Chameleon Orange is noticeably lighter, more saturated than Red Cloak.

Can I use Chameleon Orange instead of Red Cloak?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Chameleon Orange is noticeably lighter, more saturated than Red Cloak.

Can I use Red Cloak instead of Chameleon Orange?

The same difference applies the other way round: Red Cloak is noticeably darker, 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.