Blue Ink vs Ink Blue

How close are they?

ΔE 11.8, fair: the same colour family, but not a straight swap. Ink Blue is a little lighter, more saturated, warmer than Blue Ink.

Can I use Ink Blue instead of Blue Ink?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Ink Blue is a little lighter, more saturated, warmer than Blue Ink.

Can I use Blue Ink instead of Ink Blue?

The same difference applies the other way round: Blue Ink is a little darker, more muted, 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.