Greedy Gold vs Gold Interference

How close are they?

ΔE 19.1, loose: different enough that you should pick on purpose. Gold Interference is much more saturated, cooler than Greedy Gold.

Can I use Gold Interference instead of Greedy Gold?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). Gold Interference is much more saturated, cooler than Greedy Gold.

Can I use Greedy Gold instead of Gold Interference?

The same difference applies the other way round: Greedy Gold is much more muted, warmer.

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.