Castellan Green vs Khaki Green

How close are they?

ΔE 13.3, fair: the same colour family, but not a straight swap. Khaki Green is much more muted, cooler than Castellan Green.

Can I use Khaki Green instead of Castellan Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Khaki Green is much more muted, cooler than Castellan Green.

Can I use Castellan Green instead of Khaki Green?

The same difference applies the other way round: Castellan Green is much 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.