ΔE 9.3, close: similar, with a visible difference side by side. White Grey is a little lighter, more saturated than Bright Neutral Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). White Grey is a little lighter, more saturated than Bright Neutral Grey.
The same difference applies the other way round: Bright Neutral Grey is a little darker, more muted.
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 Bright Neutral Grey on the colour wheel See White Grey on the colour wheel
All matches: Bright Neutral Grey equivalents · White Grey equivalents