Chaotic Red vs Harvest Brown

How close are they?

ΔE 14.3, fair: the same colour family, but not a straight swap. Harvest Brown is a little lighter, warmer than Chaotic Red.

Can I use Harvest Brown instead of Chaotic Red?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Harvest Brown is a little lighter, warmer than Chaotic Red.

Can I use Chaotic Red instead of Harvest Brown?

The same difference applies the other way round: Chaotic Red is a little darker, cooler.

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.