Wild Rider Red vs Fire Red

How close are they?

ΔE 30.6, loose: different enough that you should pick on purpose. Fire Red is noticeably darker, much more muted, cooler than Wild Rider Red.

Can I use Fire Red instead of Wild Rider Red?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 31). Fire Red is noticeably darker, much more muted, cooler than Wild Rider Red.

Can I use Wild Rider Red instead of Fire Red?

The same difference applies the other way round: Wild Rider Red is noticeably lighter, much more saturated, 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.