Pastel Yellow vs Citrine Yellow

How close are they?

ΔE 9.1, close: similar, with a visible difference side by side. Citrine Yellow is a little darker, more saturated than Pastel Yellow. They are different kinds of paint: Army Painter Pastel Yellow is a one-coat contrast-style paint and Green Stuff World Citrine Yellow 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 Citrine Yellow instead of Pastel Yellow?

Usually, if you are not matching paint already on the model. Close match (ΔE 9). Citrine Yellow is a little darker, more saturated than Pastel Yellow. They are different kinds of paint.

Can I use Pastel Yellow instead of Citrine Yellow?

The same difference applies the other way round: Pastel Yellow is a little lighter, more muted.

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.