ΔE 7.0, close: similar, with a visible difference side by side. Templar White is more muted than Undead Dragon.
Usually, if you are not matching paint already on the model. Close match (ΔE 7). Templar White is more muted than Undead Dragon.
The same difference applies the other way round: Undead Dragon is more saturated.
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 Undead Dragon on the colour wheel See Templar White on the colour wheel
All matches: Undead Dragon equivalents · Templar White equivalents