Named color · Blue
Prussian Blue
#003153
Nearest named
Prussian Blue
Family
Blue
Lightness
30.4%
Chroma
0.078
Hue angle
245.9°
Temperature
Cool
Contrast on white
13.43:1 · AAA
Contrast on black
1.38:1 · Fail
Web-safe
#003366
CSS oklch()
30% 0.08 246

Prussian Blue is a deep, cool blue. On the Color Lab it reads clean and engineered, quietly premium. It reproduces cleanly in print.

Palettes built on Prussian Blue

Not just a swatch — here's how Prussian Blue works with other colors. Named schemes with Prussian Blue in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Prussian Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Prussian Blue keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Tech Product Signal · 5 colors

Prussian Blue is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Prussian Blue.

Vintage Leather Lead · 5 colors

Prussian Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Prussian Blue is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Prussian Blue carrying the quiet middle.

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Color Lab

How Prussian Blue actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 28/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 29/100
Low
Firm and assertive — carries weight and contrast.
Depth 68/100
High
Deep and grounding — anchors a layout, strong dark-mode base.
Naturalness 0/100
Very low
Reads engineered rather than organic — synthetic, digital.
Vintage feel 36/100
Low
A faint retro warmth without tipping into sepia.
Luxury 72/100
High
Restrained and premium — deep, quiet, high-end packaging and fashion.
Brand distinctiveness 30/100
Low
Recognisable but shares space with nearby hues.
UI accent fit 35/100
Low
Workable accent with care around contrast.
Surface fit 42/100
Moderate
Usable as a tinted surface in measured doses.
Print safety 82/100
Very high
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with Prussian Blue

For UI
For branding
For interior
For fashion
People also use Prussian Blue with

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA
Body text Passes on white at 16px and above. Pass
Large display Fine for headings 24px+ on white. Pass
Background Pair with white text at 13.4:1. Use
Subtle surface Use #B5D9F3 for cards and hover fills. Tint 80
Avoid beside #001452 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is Prussian Blue at work across the surfaces designers actually ship.

Website / UI
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Dashboard
Revenue
$48.2k ▲ 12%
Brand
AVELINE
Studio
Poster
Nov 14 · 8PM
NIGHT
MARKET
Packaging
BLOOM
Botanical Wash
250 ml
Interior

Scales

ShadesBase darkened in 10% steps
TintsBase lifted toward white
TonesSaturation removed, lightness held
Monochromatic scaleDesign-system ready, 50–900

Every model

Export

:root {
  --color-base: #003153;
  --color-base-rgb: 0 49 83;
  --color-base-oklch: oklch(30.4% 0.078 245.9);
  --color-50: #F0F9FE;
  --color-100: #D8EEFD;
  --color-200: #B1DCFC;
  --color-300: #77C2F8;
  --color-400: #46A7EC;
  --color-500: #2289D2;
  --color-600: #236B9F;
  --color-700: #1F4E70;
  --color-800: #183448;
  --color-900: #11212C;
  --color-on-base: #FFFFFF;
}