ΔE 9.1, close: similar, with a visible difference side by side. Dark Rose Tan is a little lighter, more muted, cooler than Topaz Skin.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). Dark Rose Tan is a little lighter, more muted, cooler than Topaz Skin.
The same difference applies the other way round: Topaz Skin is a little darker, 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 Topaz Skin on the colour wheel See Dark Rose Tan on the colour wheel
All matches: Topaz Skin equivalents · Dark Rose Tan equivalents