Glowing Inferno vs Meaty Ochre

How close are they?

ΔE 22.8, loose: different enough that you should pick on purpose. Meaty Ochre is noticeably darker, much more muted than Glowing Inferno.

Can I use Meaty Ochre instead of Glowing Inferno?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 23). Meaty Ochre is noticeably darker, much more muted than Glowing Inferno.

Can I use Glowing Inferno instead of Meaty Ochre?

The same difference applies the other way round: Glowing Inferno is noticeably lighter, much more saturated.

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.