Primary Magenta vs Sunset Red

How close are they?

ΔE 11.0, fair: the same colour family, but not a straight swap. Sunset Red is a little lighter, warmer than Primary Magenta.

Can I use Sunset Red instead of Primary Magenta?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Sunset Red is a little lighter, warmer than Primary Magenta.

Can I use Primary Magenta instead of Sunset Red?

The same difference applies the other way round: Primary Magenta 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.