Arabic Shadow vs Cayman Green

How close are they?

ΔE 10.8, fair: the same colour family, but not a straight swap. Cayman Green is a little lighter, cooler than Arabic Shadow.

Can I use Cayman Green instead of Arabic Shadow?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Cayman Green is a little lighter, cooler than Arabic Shadow.

Can I use Arabic Shadow instead of Cayman Green?

The same difference applies the other way round: Arabic Shadow is a little darker, 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.