Nickel Azo Yellow vs Beige

How close are they?

ΔE 15.3, loose: different enough that you should pick on purpose. Beige is a little lighter, more muted than Nickel Azo Yellow.

Can I use Beige instead of Nickel Azo Yellow?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Beige is a little lighter, more muted than Nickel Azo Yellow.

Can I use Nickel Azo Yellow instead of Beige?

The same difference applies the other way round: Nickel Azo Yellow is a little darker, 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.