Dark Magenta vs Sunset Red

How close are they?

ΔE 14.1, fair: the same colour family, but not a straight swap. Sunset Red is noticeably darker, cooler than Dark Magenta.

Can I use Sunset Red instead of Dark Magenta?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Sunset Red is noticeably darker, cooler than Dark Magenta.

Can I use Dark Magenta instead of Sunset Red?

The same difference applies the other way round: Dark Magenta is noticeably lighter, 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.