Calth Blue Clear sits in the blue family: mid-tone in tone, vivid in saturation, cool in cast. Within the Citadel range it ladders cleanly, Hoeth Blue for the shadows and Lothern Blue for the highlights. Substitutes are thinner on the ground; Two Thin Coats Relic Blue is the nearest same-finish option at 83 percent, with 1 brand in strong-match range. Cross-brand swaps are adjust-on-model territory here, useful as a starting point rather than an exact replacement.
Calth Blue Clear equivalents in other ranges
Calth Blue Clear is awkward to replace. Treat the matches below as starting points for a mix rather than straight swaps.
Closest Two Thin Coats equivalent: Two Thin Coats Relic Blue, a near match with visible drift up close (delta E 3.3).
Best Humbrol option: Humbrol Middle Blue, a usable stand-in rather than a twin (delta E 4.8).
From Vallejo: Vallejo Fluorescent Blue, workable at tabletop distance, not up close (delta E 5.3).
The Army Painter's closest color: The Army Painter Arctic Gem, a usable stand-in rather than a twin (delta E 5.5).
Worth knowing before you swap: Two Thin Coats Relic Blue runs slightly warmer and more muted, which shows most where the paint thins over raised detail.
How to read the score
90+Close
80sUsable
<70Mix
Two Thin Coats
Humbrol
Vallejo
The Army Painter
Revell
Scale75
Tamiya
About this color
Color profile
Highlight and shade ladder
Pairs well with
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Where painters use it
Frequently asked
What is the closest equivalent to Citadel Calth Blue Clear?
The closest same-finish match is Two Thin Coats Relic Blue at 83% color similarity.
What color is Calth Blue Clear?
Calth Blue Clear is a mid-tone vivid blue with a cool undertone (hex #0087D1).
What do I highlight and shade Calth Blue Clear with?
Highlight Calth Blue Clear toward Lothern Blue and shade it down into Hoeth Blue, both Citadel paints in the same finish family.