Molten Orange vs Sangria Red

How close are they?

ΔE 16.2, loose: different enough that you should pick on purpose. Sangria Red is a little darker, much more saturated, cooler than Molten Orange.

Can I use Sangria Red instead of Molten Orange?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Sangria Red is a little darker, much more saturated, cooler than Molten Orange.

Can I use Molten Orange instead of Sangria Red?

The same difference applies the other way round: Molten Orange is a little lighter, much more muted, 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.