Stormhost Silver vs Golden Shine

How close are they?

ΔE 52.1, loose: different enough that you should pick on purpose. Golden Shine is noticeably darker, much more saturated than Stormhost Silver.

Can I use Golden Shine instead of Stormhost Silver?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 52). Golden Shine is noticeably darker, much more saturated than Stormhost Silver.

Can I use Stormhost Silver instead of Golden Shine?

The same difference applies the other way round: Stormhost Silver is noticeably lighter, much more muted.

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.