Blue Horror vs Ion Blue

How close are they?

ΔE 13.0, fair: the same colour family, but not a straight swap. Ion Blue is a little lighter, more muted, warmer than Blue Horror.

✓ Two Thin Coats comparison chart lists these two as equivalents.

Can I use Ion Blue instead of Blue Horror?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 13). Ion Blue is a little lighter, more muted, warmer than Blue Horror.

Can I use Blue Horror instead of Ion Blue?

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

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.