Paints › Citadel / Warhammer › Thunderhawk Blue › vs Extra Dark Seagray BS381C 640Thunderhawk Blue vs Extra Dark Seagray BS381C 640
Brand Citadel / Warhammer Range Colour: Layer Type an opaque base/layer paint Swatch #2a4a60 (estimate)
Brand Mr. Hobby Range Mr. Color Code C-333 Type an opaque base/layer paint Swatch #334b5b (estimate) How close are they?
ΔE 4.2, very close: most people won’t see a difference side by side. Extra Dark Seagray BS381C 640 is more muted than Thunderhawk Blue.
Can I use Extra Dark Seagray BS381C 640 instead of Thunderhawk Blue? Yes, for most jobs. Very close match (ΔE 4). Extra Dark Seagray BS381C 640 is more muted than Thunderhawk Blue.
Can I use Thunderhawk Blue instead of Extra Dark Seagray BS381C 640? The same difference applies the other way round: Thunderhawk Blue 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 Thunderhawk Blue on the colour wheel See Extra Dark Seagray BS381C 640 on the colour wheel
Other Mr. Hobby paints close to Thunderhawk Blue Other Citadel paints close to Extra Dark Seagray BS381C 640 All matches: Thunderhawk Blue equivalents · Extra Dark Seagray BS381C 640 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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