Senshi Skin vs Birch

How close are they?

ΔE 11.8, fair: the same colour family, but not a straight swap. Birch is a little lighter, more muted than Senshi Skin.

Can I use Birch instead of Senshi Skin?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Birch is a little lighter, more muted than Senshi Skin.

Can I use Senshi Skin instead of Birch?

The same difference applies the other way round: Senshi Skin 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.