Skyshard vs White Room

How close are they?

ΔE 7.1, close: similar, with a visible difference side by side. White Room is a little lighter, more muted than Skyshard.

Can I use White Room instead of Skyshard?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). White Room is a little lighter, more muted than Skyshard.

Can I use Skyshard instead of White Room?

The same difference applies the other way round: Skyshard is a little darker, more saturated.

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.