Nearest named color: Prussian Blue
#0F253E
#0F253E
Nearest named
Prussian Blue
Family
Blue
Lightness
26.1%
Chroma
0.055
Hue angle
253.2°
Temperature
Cool
Contrast on white
15.50:1 · AAA
Contrast on black
1.20:1 · Fail
Web-safe
#003333
CSS oklch()
26% 0.05 253

#0F253E is a deep, cool indigo. On the Color Lab it reads clean and engineered, quietly premium. It is too dark to lead as a primary accent and reproduces cleanly in print.

Palettes built on #0F253E

Not just a swatch — here's how #0F253E works with other colors. Named schemes with #0F253E 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 #0F253E 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 35/100
Cool
Reads cool and recessive — calming, technical, good for trust-led UI.
Softness 27/100
Low
Firm and assertive — carries weight and contrast.
Depth 71/100
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 29/100
Low
A faint retro warmth without tipping into sepia.
Luxury 73/100
High
Restrained and premium — deep, quiet, high-end packaging and fashion.
Brand distinctiveness 21/100
Low
Quiet and neutral — a supporting tone, not a signature.
UI accent fit 21/100
Low
Weak as an action color — too pale, too dark or too muted to signal.
Surface fit 51/100
Moderate
Usable as a tinted surface in measured doses.
Print safety 88/100
Very high
Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0F253E

For UI
For branding
For interior
For fashion
People also use #0F253E 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 15.5:1. Use
Subtle surface Use #C1D2E7 for cards and hover fills. Tint 80
Avoid beside #0F153E — 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 #0F253E 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: #0F253E;
  --color-base-rgb: 15 37 62;
  --color-base-oklch: oklch(26.1% 0.055 253.2);
  --color-50: #F2F7FC;
  --color-100: #DDEAF8;
  --color-200: #BDD5EF;
  --color-300: #90B5DF;
  --color-400: #6796CB;
  --color-500: #4577B0;
  --color-600: #3B5E87;
  --color-700: #2F4660;
  --color-800: #222F3F;
  --color-900: #161E27;
  --color-on-base: #FFFFFF;
}