What is the difference between Calgar Blue and Ultramarine?

ΔE 17 (loose). Ultramarine is much more saturated, warmer. Swatch colours are estimates.

Calgar Blue vs Ultramarine

Calgar Blue

Brand: Citadel / Warhammer
Range: Colour: Layer
Type: an opaque base/layer paint
Swatch: #2a60a8 (estimate)

Ultramarine

Brand: Pro Acryl
Range: Standard / Signature / AMP
Code: S35
Type: an opaque base/layer paint
Swatch: #3a52b0 (estimate)

How close are they?

ΔE 17.4, loose: different enough that you should pick on purpose. Ultramarine is much more saturated, warmer than Calgar Blue.

Can I use Ultramarine instead of Calgar Blue?

Not as a straight swap; see the closer alternatives below. Loose match (ΔE 17). Ultramarine is much more saturated, warmer than Calgar Blue.

Can I use Calgar Blue instead of Ultramarine?

The same difference applies the other way round: Calgar Blue is much more muted, cooler.

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 Calgar Blue on the colour wheel See Ultramarine on the colour wheel

Other Pro Acryl paints close to Calgar Blue

Calgar Blue vs Blue (005)Standard / Signature / AMP · ΔE 6, very close · closer than Ultramarine
Calgar Blue vs Primary Cyan (E014)Expert Acrylics · ΔE 6, very close · closer than Ultramarine
Calgar Blue vs Sky Blue (012)Standard / Signature / AMP · ΔE 20, loose

Other Citadel paints close to Ultramarine

Ultramarine vs Calth Blue ClearColour: Air · ΔE 8, close · closer than Calgar Blue
Ultramarine vs Altdorf Guard BlueColour: Layer · ΔE 20, loose
Ultramarine vs Macragge BlueColour: Base · ΔE 20, loose

All matches: Calgar Blue equivalents · Ultramarine equivalents