ΔE 6.0, close: similar, with a visible difference side by side. Light Grey RLM63 is more muted than Admiral Grey.
Usually, if you are not matching paint already on the model. Close match (ΔE 6). Light Grey RLM63 is more muted than Admiral Grey.
The same difference applies the other way round: Admiral Grey 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 Admiral Grey on the colour wheel See Light Grey RLM63 on the colour wheel
All matches: Admiral Grey equivalents · Light Grey RLM63 equivalents