What is the difference between Diabolic Plum and Ultramar Blue?

ΔE 18 (loose). Ultramar Blue is more muted, cooler. Swatch colours are estimates.

Diabolic Plum vs Ultramar Blue

Diabolic Plum

Brand: Army Painter
Range: Warpaints Fanatic
Type: an opaque base/layer paint
Swatch: #56286a (estimate)

Ultramar Blue

Brand: Green Stuff World
Range: Acrylic Colors
Code: 3224
Type: an opaque base/layer paint
Swatch: #353568 (estimate)

How close are they?

ΔE 18.1, loose: different enough that you should pick on purpose. Ultramar Blue is more muted, cooler than Diabolic Plum.

Can I use Ultramar Blue instead of Diabolic Plum?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 18). Ultramar Blue is more muted, cooler than Diabolic Plum.

Can I use Diabolic Plum instead of Ultramar Blue?

The same difference applies the other way round: Diabolic Plum is more saturated, warmer.

ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.

See Diabolic Plum on the colour wheel See Ultramar Blue on the colour wheel

Other Green Stuff World paints close to Diabolic Plum

Diabolic Plum vs Liche Purple (1790)Acrylic Colors · ΔE 7, close · closer than Ultramar Blue
Diabolic Plum vs Nightmare Purple (4132)Opaque Colors · ΔE 9, close · closer than Ultramar Blue
Diabolic Plum vs Phantom Violet (3221)Acrylic Colors · ΔE 13, fair · closer than Ultramar Blue

Other Army Painter paints close to Ultramar Blue

Ultramar Blue vs Gothic BlueWarpaints Fanatic · ΔE 5, very close · closer than Diabolic Plum
Ultramar Blue vs Omega BlueWarpaints Air · ΔE 10, close · closer than Diabolic Plum
Ultramar Blue vs Triumphant NavyWarpaints Fanatic · ΔE 11, fair · closer than Diabolic Plum

All matches: Diabolic Plum equivalents · Ultramar Blue equivalents