Terrestrial Titan vs Dark Brown Ochre

How close are they?

ΔE 10.8, fair: the same colour family, but not a straight swap. Dark Brown Ochre is more muted than Terrestrial Titan.

Can I use Dark Brown Ochre instead of Terrestrial Titan?

Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 11). Dark Brown Ochre is more muted than Terrestrial Titan.

Can I use Terrestrial Titan instead of Dark Brown Ochre?

The same difference applies the other way round: Terrestrial Titan is 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.