Barren Yellow vs Transparent Ochre

How close are they?

ΔE 6.8, close: similar, with a visible difference side by side. Transparent Ochre is a little darker than Barren Yellow. They are different kinds of paint: Army Painter Barren Yellow is an opaque base/layer paint and Green Stuff World Transparent Ochre is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.

Can I use Transparent Ochre instead of Barren Yellow?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). Transparent Ochre is a little darker than Barren Yellow. They are different kinds of paint.

Can I use Barren Yellow instead of Transparent Ochre?

The same difference applies the other way round: Barren Yellow is a little lighter.

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.