ΔE 8.7, close: similar, with a visible difference side by side. Brown RLM26 is a little darker than Burnt Offering.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Brown RLM26 is a little darker than Burnt Offering.
The same difference applies the other way round: Burnt Offering is a little lighter.
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.
See Burnt Offering on the colour wheel See Brown RLM26 on the colour wheel
All matches: Burnt Offering equivalents · Brown RLM26 equivalents