Khaki vs US Interior Yellow

How close are they?

ΔE 7.0, close: similar, with a visible difference side by side. US Interior Yellow is a little lighter than Khaki.

Can I use US Interior Yellow instead of Khaki?

Usually, if you are not matching paint already on the model. Close match (ΔE 7). US Interior Yellow is a little lighter than Khaki.

Can I use Khaki instead of US Interior Yellow?

The same difference applies the other way round: Khaki is a little darker.

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.