ΔE 9.7, close: similar, with a visible difference side by side. Yellow Glaze is a little lighter, more muted than Pastel Yellow. They are different kinds of paint: Army Painter Pastel Yellow is a one-coat contrast-style paint and Two Thin Coats Yellow Glaze is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Usually, if you are not matching paint already on the model. Close match (ΔE 10). Yellow Glaze is a little lighter, more muted than Pastel Yellow. They are different kinds of paint.
The same difference applies the other way round: Pastel Yellow is a little darker, 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.
See Pastel Yellow on the colour wheel See Yellow Glaze on the colour wheel
All matches: Pastel Yellow equivalents · Yellow Glaze equivalents