Blush Red vs Sepia Wash

How close are they?

ΔE 48.3, loose: different enough that you should pick on purpose. Sepia Wash is noticeably darker, much more muted, warmer than Blush Red.

Can I use Sepia Wash instead of Blush Red?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 48). Sepia Wash is noticeably darker, much more muted, warmer than Blush Red.

Can I use Blush Red instead of Sepia Wash?

The same difference applies the other way round: Blush Red is noticeably lighter, much 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.