Rlm 78 (1942) is a light muted grey with a cool undertone. Matching it is straightforward: Citadel Celestra Grey lands at 85 percent in the same finish, and 3 brands in all carry a close same-finish swap. It builds a smooth gradient with Rlm 78 (1941) underneath and Warm Grey on the highlights, all in the AK Interactive line. In practice you can substitute across brands here without anyone noticing at arm's length.
Rlm 78 (1942) equivalents in other ranges
Rlm 78 (1942) is awkward to replace. Treat the matches below as starting points for a mix rather than straight swaps.
Closest Citadel equivalent: Citadel Celestra Grey, a near match with visible drift up close (delta E 3.1).
Vallejo's closest color: Vallejo Light Green Blue, close, with a hint of drift side by side (delta E 3.2).
Nearest in the Revell catalog: Revell Light Grey (USAF), a near match with visible drift up close (delta E 3.5).
Best P3 Paints option: P3 Paints Underbelly Blue, a usable stand-in rather than a twin (delta E 5.8).
The drift here is spread thinly across hue, lightness and saturation rather than leaning one way, so the mismatch reads as a general haze at delta E 3.1 rather than an obvious shift.
How to read the score
90+Close
80sUsable
<70Mix
Citadel
Vallejo
Revell
P3 Paints
Humbrol
Tamiya
Monument Pro Acryl
Two Thin Coats
The Army Painter
About this color
Color profile
Highlight and shade ladder
Match difficulty
Found in 3 other brands with a same-finish match.
Where painters use it
Frequently asked
What is the closest equivalent to AK Interactive Rlm 78 (1942)?
The closest same-finish match is Citadel Celestra Grey at 85% color similarity.
What color is Rlm 78 (1942)?
Rlm 78 (1942) is a light muted grey with a cool undertone (hex #889D98).
What do I highlight and shade Rlm 78 (1942) with?
Highlight Rlm 78 (1942) toward Warm Grey and shade it down into Rlm 78 (1941), both AK Interactive paints in the same finish family.