Grey Blue sits in the blue family: mid-tone in tone, moderate in saturation, cool in cast. For modelling, drop to Turquoise in the recesses and step up to Bright Neutral Grey on the edges, both Monument Pro Acryl paints. Grey Blue is a little less common: the closest same-finish match, Citadel Russ Grey, reaches 86 percent, and 2 other brands carry a strong same-finish alternative. Cross-brand swaps are adjust-on-model territory here, useful as a starting point rather than an exact replacement.
Grey Blue equivalents in other ranges
Grey Blue is awkward to replace. Treat the matches below as starting points for a mix rather than straight swaps.
Closest Citadel equivalent: Citadel Russ Grey, a near match with visible drift up close (delta E 2.8).
Vallejo's closest color: Vallejo Grey Blue, close, with a hint of drift side by side (delta E 4.0).
Nearest in the Humbrol catalog: Humbrol Intermediate Blue, workable at tabletop distance, not up close (delta E 4.5).
Best The Army Painter option: The Army Painter Runic Cobalt, a usable stand-in rather than a twin (delta E 4.6).
The honest caveat: Citadel Russ Grey dries slightly warmer than Grey Blue, so expect recess shading and edge highlights to shift with it.
How to read the score
90+Close
80sUsable
<70Mix
Citadel
Vallejo
Humbrol
The Army Painter
Two Thin Coats
Green Stuff World
Scale75
AK Interactive
Tamiya
P3 Paints
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 Monument Pro Acryl Grey Blue?
The closest same-finish match is Citadel Russ Grey at 86% color similarity.
What color is Grey Blue?
Grey Blue is a mid-tone moderate blue with a cool undertone (hex #50728E).
What do I highlight and shade Grey Blue with?
Highlight Grey Blue toward Bright Neutral Grey and shade it down into Turquoise, both Monument Pro Acryl paints in the same finish family.