ΔE 8.4, close: similar, with a visible difference side by side. Dark Blue RLM24 is a little lighter, more muted, warmer than Shadow Thorn.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Dark Blue RLM24 is a little lighter, more muted, warmer than Shadow Thorn.
The same difference applies the other way round: Shadow Thorn is a little darker, more saturated, cooler.
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 Shadow Thorn on the colour wheel See Dark Blue RLM24 on the colour wheel
All matches: Shadow Thorn equivalents · Dark Blue RLM24 equivalents