ΔE 11.8, fair: the same colour family, but not a straight swap. Yellow Ochre is more muted, cooler than Gryph-Hound Orange. They are different kinds of paint: Citadel Gryph-Hound Orange is a one-coat contrast-style paint and Golden Yellow Ochre is an ink, glaze or transparent paint, so they won’t behave the same on the model even where the colour is close.
Only where an exact match doesn’t matter, such as a new unit or a highlight. Fair match (ΔE 12). Yellow Ochre is more muted, cooler than Gryph-Hound Orange. They are different kinds of paint.
The same difference applies the other way round: Gryph-Hound Orange is more saturated, 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.
See Gryph-Hound Orange on the colour wheel See Yellow Ochre on the colour wheel
All matches: Gryph-Hound Orange equivalents · Yellow Ochre equivalents