Red Primer vs Squig Orange

How close are they?

ΔE 13.6, fair: the same colour family, but not a straight swap. Squig Orange is a little lighter, much more saturated than Red Primer.

Can I use Squig Orange instead of Red Primer?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 14). Squig Orange is a little lighter, much more saturated than Red Primer.

Can I use Red Primer instead of Squig Orange?

The same difference applies the other way round: Red Primer is a little darker, 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.