Paints › Mr. Hobby › Medium Seagray BS637 › vs Russian AF Grey N.3Medium Seagray BS637 vs Russian AF Grey N.3
Brand Mr. Hobby Range Mr. Color Code C-363 Type an opaque base/layer paint Swatch #72868c (estimate)
Brand Vallejo Range Model Air Code 71.339 Type an opaque base/layer paint Swatch #798382 (estimate) How close are they?
ΔE 5.3, very close: most people won’t see a difference side by side. Russian AF Grey N.3 is more muted than Medium Seagray BS637.
Can I use Russian AF Grey N.3 instead of Medium Seagray BS637? Yes, for most jobs. Very close match (ΔE 5). Russian AF Grey N.3 is more muted than Medium Seagray BS637.
Can I use Medium Seagray BS637 instead of Russian AF Grey N.3? The same difference applies the other way round: Medium Seagray BS637 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 Medium Seagray BS637 on the colour wheel See Russian AF Grey N.3 on the colour wheel
Other Vallejo paints close to Medium Seagray BS637 Other Mr. Hobby paints close to Russian AF Grey N.3 All matches: Medium Seagray BS637 equivalents · Russian AF Grey N.3 equivalents
© 2026 AK Tabletop Studio. Swatch colours are estimates and will differ from the real paints; cross-brand matches are close, never exact.
Chart-listed matches come from the Two Thin Coats Paint Comparison Chart 2024, the Army Painter Warpaints Fanatic conversion chart, the AK 3rd Generation Acrylics equivalence table (2021) and the Herrick Games hobby paint comparison chart; the rest are a nearest-colour calculation.
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