Fire Dragon Bright vs Meaty Ochre

How close are they?

ΔE 21.3, loose: different enough that you should pick on purpose. Meaty Ochre is noticeably darker, much more muted, cooler than Fire Dragon Bright.

Can I use Meaty Ochre instead of Fire Dragon Bright?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 21). Meaty Ochre is noticeably darker, much more muted, cooler than Fire Dragon Bright.

Can I use Fire Dragon Bright instead of Meaty Ochre?

The same difference applies the other way round: Fire Dragon Bright 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.