Equivalent preview
SC-33 Cobalt Blue · Scale75 · ΔE 3.04
Ultramarine Blue · Army Painter · ΔE 2.63
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SC-33 Cobalt Blue · Scale75 · ΔE 3.04
Ultramarine Blue · Army Painter · ΔE 2.63
| Brand | Colour | Delta E | Match |
|---|---|---|---|
| Scale75 | SC-33 Cobalt Blue | 3.04 | Good |
| Vallejo Game Color | Ultramarines Blue (72.022) | 3.17 | Good |
| Vallejo Game Color | Imperial Blue (72.020) | 3.59 | Good |
| Citadel (Games Workshop) | Mordian Blue | 3.97 | Good |
| Citadel (Games Workshop) | Calgar Blue | 4.10 | Good |
| Vallejo Model Color | Flat Blue (70.962) | 4.11 | Good |
| AK Interactive | ULTRAMARINE | 6.13 | Acceptable |
| Army Painter | Ultramarine Blue | 2.63 | Good |
As a layer paint, this colour is formulated for translucency and smooth transitions over an existing basecoat. Cool blue tones anchor many Space Marine chapters and provide a stable foundation for cold schemes.
The closest Altdorf Guard Blue equivalent is SC-33 Cobalt Blue (Scale75) (ΔE 3.0).
Altdorf Guard Blue is a layer from Citadel (Games Workshop), commonly used for armour plates, cloth, and trim work.
This paint is typically used for:
Apply it over a suitable primer and build layers gradually. Coverage sits around medium, so two thin coats usually give a more stable finish than one heavy pass, especially over a dark primer.
Consider the following when working with this paint:
A good equivalent should remain stable after shading and highlighting. Test this alternative on the same primer and in the same recipe before switching a whole unit.
For best results with Altdorf Guard Blue on Warhammer and other miniature projects:
Even small differences can become visible on a finished miniature. This match may behave differently on textured surfaces like cloth, fur, and metal trim once the full recipe is applied.
Choosing the right Altdorf Guard Blue equivalent or substitute keeps your scheme consistent from the test model to the full army. Use this comparison to weigh the closest Vallejo, Army Painter, and other cross-brand options before repainting a whole squad.
Use Altdorf Guard Blue as your main layer colour and build it up with thin, controlled coats. It has medium coverage. Thin it moderately. Good companion colours include Macragge Blue, Drakenhof Nightshade, Calgar Blue and Hoeth Blue.
Do not force the basecoat into an NMM-style finish. It behaves much better in a standard layered workflow.
Use Altdorf Guard Blue as your main layer colour and build it up with thin, controlled coats. It has medium coverage. Thin it moderately. Good companion colours include Macragge Blue, Drakenhof Nightshade, Calgar Blue and Hoeth Blue.
This summary is built from the local usage notes, structured paint detail data, and the same Delta-E matching system used across ChromaStack.
Do not force the basecoat into an NMM-style finish. It behaves much better in a standard layered workflow.