Lothern Blue
Layer
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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 Guilliman Blue equivalent is Arctic Gem (Army Painter) (ΔE 4.2).
For the Guilliman Blue equivalent Vallejo, Sky Blue (70.961) (Vallejo Model Color) (ΔE 6.3).
The best Guilliman Blue Army Painter equivalent is Arctic Gem (Army Painter) (ΔE 4.2).
These 3 substitutes are ranked by Delta-E accuracy. Each entry includes a behaviour comment.
The closest cross-brand equivalent to Guilliman Blue in the current local catalogue is Arctic Gem from Army Painter (Delta-E 4.15).
Matches are computed from the local paint catalogue with Delta-E CIEDE2000. Lower values mean a closer visual match on the miniature.
Finish, opacity, flow, and bottle format are not captured by Delta-E alone. Test the substitute if the recipe relies on a specific behaviour.
Before adopting a substitute, check these points specific to this layer paint:
Guilliman Blue is a layer paint from Citadel (Games Workshop). Its specific pigment load, drying behaviour, and finish set it apart from other paints in the same category, which is why a direct substitute needs to match more than just the colour value.
The closest Vallejo option is Sky Blue (70.961) (Delta E 6.29).
Yes, Guilliman Blue is currently part of the Citadel (Games Workshop) range. Check local stock or equivalent alternatives if the pot is hard to source.
Check Delta-E, finish type, coverage, opacity, and behaviour over your chosen primer. Run a full test with one shade and one highlight pass before applying the substitute to an entire unit.
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 Guilliman Blue equivalent is Arctic Gem (Army Painter) (ΔE 4.2).
For the Guilliman Blue equivalent Vallejo, Sky Blue (70.961) (Vallejo Model Color) (ΔE 6.3).
The best Guilliman Blue Army Painter equivalent is Arctic Gem (Army Painter) (ΔE 4.2).
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 Guilliman Blue equivalent is Arctic Gem (Army Painter) with Delta E 4.2. For a Guilliman Blue equivalent Vallejo match, Sky Blue (70.961) (Vallejo Model Color) with Delta E 6.3 is the closest pick. The best Guilliman Blue Army Painter equivalent is Arctic Gem (Army Painter) with Delta E 4.2.
The closest Vallejo match is Sky Blue (70.961) (Vallejo Model Color) with Delta E 6.3.
The best Army Painter option is Arctic Gem (Army Painter) with Delta E 4.2.
As a layer paint, Guilliman Blue is designed for smooth transitions and controlled highlights. The colour sits in the deep blue range, with reliable coverage and stable opacity over the primer already used in your recipe.
Layer paints are more translucent than base paints by design. Guilliman Blue builds colour gradually, which means a substitute must also layer well without going opaque too quickly or requiring too many coats.
For best results, thin Guilliman Blue to controlled thinning and apply in multiple passes. A substitute that dries too fast or too matte will change how the glaze settles on the model.
The deep blue tone of Guilliman Blue works best when layered from a darker base. Check that the substitute blends gradually without hard edges between coats.
Guilliman Blue is commonly used for edge highlights and surface detail. A substitute with different thinning behaviour will alter how precisely you can place the highlight.
A layer paint substitute only becomes trustworthy once it survives the same primer, shade, and highlight sequence as the original recipe.
Looking at the surrounding palette matters because a near match can still push the finished model warmer, colder, or flatter than expected.
That combination of colour distance, finish, and recipe context is what makes a layer paint substitute reliable on an actual miniature.
That combination of colour distance, finish, and recipe context is what makes a substitute reliable on an actual miniature.
A paint substitute only becomes trustworthy once it survives the same primer, shade, and highlight sequence as the original recipe.
Looking at the surrounding palette matters too, because a near match can still push the finished model warmer, colder, flatter, or glossier than expected.
That is why the page keeps the recommendation anchored to painting workflow instead of treating Delta-E alone as the final decision.
A useful equivalent page should also reduce buying mistakes: the closer colour is not always the safer option if the bottle dries glossier, covers faster, or behaves differently on large armour panels.