Golden Brown vs Orange Yellow

How close are they?

ΔE 9.5, close: similar, with a visible difference side by side. Orange Yellow is a little lighter, more saturated than Golden Brown.

Can I use Orange Yellow instead of Golden Brown?

Usually, if you are not matching paint already on the model. Close match (ΔE 10). Orange Yellow is a little lighter, more saturated than Golden Brown.

Can I use Golden Brown instead of Orange Yellow?

The same difference applies the other way round: Golden Brown is a little darker, more muted.

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.