ΔE 8.1, close: similar, with a visible difference side by side. Steel Blue is a little darker, cooler than Payne’s Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 8). Steel Blue is a little darker, cooler than Payne’s Grey.
The same difference applies the other way round: Payne’s Grey is a little lighter, 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 Payne’s Grey on the colour wheel See Steel Blue on the colour wheel
All matches: Payne’s Grey equivalents · Steel Blue equivalents