Soulstone Blue is genuinely hard to match: no other brand has a same-finish equivalent close enough to swap, and the nearest color anywhere, Green Stuff World Abyss Blue at 96 percent, is a different finish. Soulstone Blue sits in the blue family: very dark in tone, vivid in saturation, cool in cast. For a true match, stick with the original; cross-brand substitutes will read as a different color.
Soulstone Blue equivalents in other ranges
Soulstone Blue is awkward to replace. Treat the matches below as starting points for a mix rather than straight swaps.
Closest Green Stuff World equivalent: Green Stuff World Abyss Blue, indistinguishable once dry (delta E 0.7), but it is an opaque acrylic so treat it as a color reference, not a swap.
Nearest in the Monument Pro Acryl catalog: Monument Pro Acryl Transparent Blue, close, with a hint of drift side by side (delta E 2.9), but it is an ink / wash / contrast so treat it as a color reference, not a swap.
Best Revell option: Revell Night Blue (RAL 5022), workable at tabletop distance, not up close (delta E 4.7), but it is an opaque acrylic so treat it as a color reference, not a swap.
From Vallejo: Vallejo Ultramarine Blue, a usable stand-in rather than a twin (delta E 5.0), but it is an opaque acrylic so treat it as a color reference, not a swap.
Side by side the two agree in lightness and temperature; at delta E 0.7 the gap is smaller than the variation between two pots of the same paint.
How to read the score
90+Close
80sUsable
<70Mix
Green Stuff World
Monument Pro Acryl
Revell
Vallejo
Humbrol
P3 Paints
The Army Painter
AK Interactive
Tamiya
About this color
Color profile
Pairs well with
Try any paint in the scheme toolMatch difficulty
Found in 0 other brands with a same-finish match.
Where painters use it
Frequently asked
What is the closest equivalent to Citadel Soulstone Blue?
No same-finish equivalent is close enough to call a straight swap. The nearest color overall is Green Stuff World Abyss Blue at 96%, in a different finish class.
What color is Soulstone Blue?
Soulstone Blue is a very dark vivid blue with a cool undertone (hex #01154B).