Liberator Gold vs Solid Gold

How close are they?

ΔE 27.9, loose: different enough that you should pick on purpose. Solid Gold is noticeably lighter, cooler than Liberator Gold.

Can I use Solid Gold instead of Liberator Gold?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 28). Solid Gold is noticeably lighter, cooler than Liberator Gold.

Can I use Liberator Gold instead of Solid Gold?

The same difference applies the other way round: Liberator Gold is noticeably 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.