ΔE 7.8, close: similar, with a visible difference side by side. Yellow Dune is more muted than Light Brick.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Yellow Dune is more muted than Light Brick.
The same difference applies the other way round: Light Brick is 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 Light Brick on the colour wheel See Yellow Dune on the colour wheel
All matches: Light Brick equivalents · Yellow Dune equivalents