This one is hard to match, with nothing in another brand landing close in the same finish, the nearest being Royal Blue from Tamiya at 92 percent in a different finish class. Medium Blue is a dark vivid blue with a cool undertone. For a true match, stick with the original; cross-brand substitutes will read as a different color.
Medium Blue equivalents in other ranges
Medium Blue is awkward to replace. Treat the matches below as starting points for a mix rather than straight swaps.
Closest Tamiya equivalent: Tamiya Royal Blue, close enough that batch variation matters more (delta E 1.6), but it is an opaque acrylic so treat it as a color reference, not a swap.
Green Stuff World's closest color: Green Stuff World Prussian Blue, a swap nobody spots at arm's length (delta E 1.7), but it is an opaque acrylic so treat it as a color reference, not a swap.
Nearest in the P3 Paints catalog: P3 Paints Cygnar Blue, a near match with visible drift up close (delta E 2.5), but it is an opaque acrylic so treat it as a color reference, not a swap.
Best The Army Painter option: The Army Painter Blue Tone, close, with a hint of drift side by side (delta E 2.8), but it is an ink / wash / contrast so treat it as a color reference, not a swap.
Side by side the two agree in lightness and temperature; at delta E 1.6 the gap is smaller than the variation between two pots of the same paint.
How to read the score
90+Close
80sUsable
<70Mix
Tamiya
Green Stuff World
P3 Paints
The Army Painter
Citadel
AK Interactive
Revell
Humbrol
Scale75
Two Thin Coats
Monument Pro Acryl
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 Vallejo Medium Blue?
No same-finish equivalent is close enough to call a straight swap. The nearest color overall is Tamiya Royal Blue at 92%, in a different finish class.
What color is Medium Blue?
Medium Blue is a dark vivid blue with a cool undertone (hex #16416C).