Shining Silver vs Runefang Steel

How close are they?

ΔE 11.7, fair: the same colour family, but not a straight swap. Runefang Steel is noticeably darker than Shining Silver.

Can I use Runefang Steel instead of Shining Silver?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Runefang Steel is noticeably darker than Shining Silver.

Can I use Shining Silver instead of Runefang Steel?

The same difference applies the other way round: Shining Silver is noticeably lighter.

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.