ΔE 7.8, close: similar, with a visible difference side by side. Titan Mars Pale is a little lighter than Leopard Stone Skin. They are different kinds of paint: Army Painter Leopard Stone Skin is an opaque base/layer paint and Golden Titan Mars Pale 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 8). Titan Mars Pale is a little lighter than Leopard Stone Skin. They are different kinds of paint.
The same difference applies the other way round: Leopard Stone Skin 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 Leopard Stone Skin on the colour wheel See Titan Mars Pale on the colour wheel
All matches: Leopard Stone Skin equivalents · Titan Mars Pale equivalents