ΔE 6.6, close: similar, with a visible difference side by side. Viridian Green Hue is a little lighter than Waystone Green. They are different kinds of paint: Citadel Waystone Green is a technical paint or medium and Golden Viridian Green Hue is an opaque base/layer 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 7). Viridian Green Hue is a little lighter than Waystone Green. They are different kinds of paint.
The same difference applies the other way round: Waystone Green 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.
See Waystone Green on the colour wheel See Viridian Green Hue on the colour wheel
All matches: Waystone Green equivalents · Viridian Green Hue equivalents