Looking for an alternative to Altdorf Guard Blue (Citadel (Games Workshop))? Whether you want a cheaper option, a dropper-bottle format, or simply a paint that's in stock — this page ranks every equivalent by Delta-E CIEDE2000 colorimetric accuracy, the international standard for colour difference measurement.
Vallejo and Army Painter offer professional-quality paints at significantly lower cost. Use the equivalent above to find the exact shade.
Delta-E CIEDE2000 is the international standard for measuring colour differences, used in printing, textile and industrial colour matching. ChromaStack applies it to miniature paints — converting each hex colour to the LAB colour space and calculating perceptual distance. A ΔE below 3 means the difference is imperceptible on a painted miniature. A ΔE above 10 means the colours are clearly different and substitution is not recommended.
The closest Vallejo equivalent is shown in the comparison table above, ranked by Delta-E CIEDE2000. A ΔE below 3 means the difference is quasi-imperceptible on a finished miniature. Both Vallejo Model Color and Vallejo Game Color ranges are covered.
Yes — Vallejo (17ml dropper bottle, ~€2.90) and Army Painter (~€3.50) are typically 50-57% cheaper than Citadel (12ml pot, ~€4.80) while offering comparable quality. The price-per-ml is significantly lower, especially for Vallejo (€0.17/ml vs €0.40/ml for Citadel).
Altdorf Guard Blue can be used alongside Contrast paints as part of a standard layering workflow.
Delta-E CIEDE2000 is the international colour science standard. ChromaStack converts each paint's hex colour to the CIELAB perceptual colour space and measures the Euclidean distance. ΔE <1 = invisible difference · ΔE 1-3 = subtle · ΔE 3-6 = acceptable substitution · ΔE >10 = not recommended. Note that paint finish (matte/satin/gloss) is not factored in.
Altdorf Guard Blue is one of Citadel (Games Workshop)'s most recognisable paints: a deep blue layer that appears across many Warhammer schemes. A deep blue layer paint from Citadel (Games Workshop)'s Layer range. It appears frequently in Thousand Sons, Night Lords, Hive Fleet Kronos and Thousand Sons (Hérésie) colour schemes. If you are looking for a reliable Altdorf Guard Blue equivalent, the comparison table above gives you the closest matches ranked by Delta-E.
Altdorf Guard Blue offers medium coverage, which makes it useful for broad armour panels and repeatable base layers.
For the cleanest finish, thin it slightly: modérée.
It behaves best over dessus Macragge Blue before the first coat.
Typical workflows include layering and highlighting.
Avoid using it for NMM effects.
Altdorf Guard Blue is a strong fit for Thousand Sons, Night Lords, Hive Fleet Kronos and Thousand Sons (Hérésie) and similar colour recipes.
It pairs naturally with Macragge Blue (Couleur de base), Drakenhof Nightshade (Shade bleu), Calgar Blue (Highlight / Highlight) and Hoeth Blue (Highlight / Highlight).
If you want a Altdorf Guard Blue equivalent to save money, switch bottle format, or find a better-stocked range, compare the Delta-E scores above. A lower score means a closer colour match on the finished miniature.
Always test substitutes when finish, opacity, or flow matter to your recipe.
Use the Delta-E table above to compare the closest Vallejo, Army Painter, and other cross-brand alternatives.
Work in thin coats, follow the usage notes on the page, and adapt the primer and thinning to your project.