Tainted Gold vs Golden Shine

How close are they?

ΔE 16.9, loose: different enough that you should pick on purpose. Golden Shine is a little lighter, cooler than Tainted Gold.

Can I use Golden Shine instead of Tainted Gold?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Golden Shine is a little lighter, cooler than Tainted Gold.

Can I use Tainted Gold instead of Golden Shine?

The same difference applies the other way round: Tainted Gold is a little darker, 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.