Temple Ochre vs US Interior Yellow

How close are they?

ΔE 8.5, close: similar, with a visible difference side by side. US Interior Yellow is more saturated, cooler than Temple Ochre.

Can I use US Interior Yellow instead of Temple Ochre?

Usually, if you are not matching paint already on the model. Close match (ΔE 8). US Interior Yellow is more saturated, cooler than Temple Ochre.

Can I use Temple Ochre instead of US Interior Yellow?

The same difference applies the other way round: Temple Ochre is 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.