Resplendent Red vs Burnt Sienna

How close are they?

ΔE 11.0, fair: the same colour family, but not a straight swap. Burnt Sienna is more muted, warmer than Resplendent Red.

Can I use Burnt Sienna instead of Resplendent Red?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Burnt Sienna is more muted, warmer than Resplendent Red.

Can I use Resplendent Red instead of Burnt Sienna?

The same difference applies the other way round: Resplendent Red is more saturated, 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.