No shortage of substitutes here, Underbelly Blue from P3 Paints matches at 97 percent and 4 brands carry a strong same-finish near-match. In the pot, Grey reads as a neutral grey, light and muted. For modelling, drop to Azure Blue in the recesses and step up to Khaki Drill on the edges, both Humbrol paints. In practice you can substitute across brands here without anyone noticing at arm's length.
Grey equivalents across other brands
The short answer: yes, Grey has a true equivalent. If the pot runs dry mid project, here is the closest color each brand offers.
Closest P3 Paints equivalent: P3 Paints Underbelly Blue, indistinguishable once dry (delta E 0.7).
- Nearest in the Tamiya catalog: Tamiya IJN Grey, a swap nobody spots at arm's length (delta E 1.9).
- Best AK Interactive option: AK Interactive Raf Camouflage (Barley) Grey Bs381C/626, a near match with visible drift up close (delta E 2.8).
- From Revell: Revell Grey / Grau (RAL 7001), close, with a hint of drift side by side (delta E 3.2).
- Citadel's closest color: Citadel Administratum Grey, workable at tabletop distance, not up close (delta E 4.3).
- Nearest in the Vallejo catalog: Vallejo Light Grey, a usable stand-in rather than a twin (delta E 4.8).
We checked the Lab numbers for a hidden catch and there is none: lightness and temperature both line up, so this swap is as safe as they come.
How to read the score
90+Close
80sUsable
<70Mix
P3 Paints
Tamiya
AK Interactive
Revell
Citadel
Vallejo
Two Thin Coats
Green Stuff World
The Army Painter
Monument Pro Acryl
Scale75
About this color
Color profile
Highlight and shade ladder
Match difficulty
Found in 4 other brands with a same-finish match.
Where painters use it
Frequently asked
What is the closest equivalent to Humbrol Grey?
The closest same-finish match is P3 Paints Underbelly Blue at 97% color similarity.
Is there a Citadel equivalent of Grey?
Yes. The closest Citadel option is Administratum Grey at 78%, a same-finish match.
What color is Grey?
Grey is a light muted grey with a neutral cast (hex #8A9597).
What do I highlight and shade Grey with?
Highlight Grey toward Khaki Drill and shade it down into Azure Blue, both Humbrol paints in the same finish family.