Blue Horror sits in the blue family: light in tone, moderate in saturation, cool in cast. It builds a smooth gradient with Grey Seer underneath and Ulthuan Grey on the highlights, all in the Citadel line. Substitutes are thinner on the ground; The Army Painter Frost Blue is the nearest same-finish option at 81 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.
Blue Horror equivalents in other ranges
Blue Horror is awkward to replace. Treat the matches below as starting points for a mix rather than straight swaps.
Closest The Army Painter equivalent: The Army Painter Frost Blue, a near match with visible drift up close (delta E 3.9).
Scale75's closest color: Scale75 Dried Lavender, a usable stand-in rather than a twin (delta E 5.2).
Nearest in the Revell catalog: Revell Grey/Grau (RAL 7001), workable at tabletop distance, not up close (delta E 5.7).
Best Green Stuff World option: Green Stuff World Wolven Grey, a usable stand-in rather than a twin (delta E 6.3).
Worth knowing before you swap: The Army Painter Frost Blue runs slightly cooler and more saturated, which shows most where the paint thins over raised detail.
How to read the score
90+Close
80sUsable
<70Mix
The Army Painter
Scale75
Revell
Green Stuff World
AK Interactive
Vallejo
Humbrol
Tamiya
Two Thin Coats
About this color
Color profile
Highlight and shade ladder
Pairs well with
Try any paint in the scheme toolMatch difficulty
Where painters use it
Frequently asked
What is the closest equivalent to Citadel Blue Horror?
The closest same-finish match is The Army Painter Frost Blue at 81% color similarity.
What color is Blue Horror?
Blue Horror is a light moderate blue with a cool undertone (hex #9EB5CE).
What do I highlight and shade Blue Horror with?
Highlight Blue Horror toward Ulthuan Grey and shade it down into Grey Seer, both Citadel paints in the same finish family.