Golden Yellow vs Zamesi Desert

How close are they?

ΔE 17.1, loose: different enough that you should pick on purpose. Zamesi Desert is a little darker, much more muted than Golden Yellow.

Can I use Zamesi Desert instead of Golden Yellow?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Zamesi Desert is a little darker, much more muted than Golden Yellow.

Can I use Golden Yellow instead of Zamesi Desert?

The same difference applies the other way round: Golden Yellow is a little 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.