Chromium Oxide Green vs Ink Green

How close are they?

ΔE 14.5, fair: the same colour family, but not a straight swap. Ink Green is a little darker, much more saturated, cooler than Chromium Oxide Green.

Can I use Ink Green instead of Chromium Oxide Green?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 15). Ink Green is a little darker, much more saturated, cooler than Chromium Oxide Green.

Can I use Chromium Oxide Green instead of Ink Green?

The same difference applies the other way round: Chromium Oxide Green is a little lighter, much more muted, warmer.

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.