ΔE 9.2, close: similar, with a visible difference side by side. AMT-7 Greyish Blue is more muted, cooler than Trollblood Base.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). AMT-7 Greyish Blue is more muted, cooler than Trollblood Base.
The same difference applies the other way round: Trollblood Base is 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 Trollblood Base on the colour wheel See AMT-7 Greyish Blue on the colour wheel
All matches: Trollblood Base equivalents · AMT-7 Greyish Blue equivalents