ΔE 9.6, close: similar, with a visible difference side by side. Dark Sand is a little darker, more muted than Bright Yellow Ochre.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Dark Sand is a little darker, more muted than Bright Yellow Ochre.
The same difference applies the other way round: Bright Yellow Ochre is a little lighter, 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.
See Bright Yellow Ochre on the colour wheel See Dark Sand on the colour wheel
All matches: Bright Yellow Ochre equivalents · Dark Sand equivalents