What color is #0C1C4B?

#0C1C4B is a very dark, vivid blue. In RGB it is rgb(12, 28, 75), and in HSL hsl(225, 72%, 17%).

Is #0C1C4B accessible as text?

On white, #0C1C4B has a contrast ratio of 16.36:1 (passes WCAG AA for body text); on black it is 1.28:1 (fails). For text placed on #0C1C4B, use white for the best readability.

What is the closest Tailwind color to #0C1C4B?

The nearest Tailwind CSS token is indigo-950 (#1E1A4D).

What colors go well with #0C1C4B?

#0C1C4B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4B3B0C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0C1C4B below.

Is #0C1C4B good for buttons?

#0C1C4B works well for buttons and highlights, but use white text on #0C1C4B — black text only reaches 1.28:1, below the 4.5:1 needed for normal-size labels.

Is #0C1C4B the same as CSS midnightblue?

No — #0C1C4B is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#0C1C4B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0C1C4B

Not just a swatch — here's how #0C1C4B works with other colors. Named schemes with #0C1C4B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0C1C4B Accent #A5C4C2 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Navy 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

Accent #0C1C4B Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A7 Anchor #2E3236

Navy 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

Signal #0C1C4B Surface #14161A Highlight #F4F6F8 Secondary #5B6672 Accent #2A3D69

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

Vintage Leather Lead · 5 colors

Lead #0C1C4B Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #58223A

Navy 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

Surface #F8F4EF Accent #0C1C4B Secondary #3C4455 Support #9D8F88 Ink #18140F

Navy 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 Navy carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #0C1C4B 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 23/100

Low

Firm and assertive — carries weight and contrast.

Depth 74/100

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 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 78/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 35/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 22/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 42/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0C1C4B

For UI

For branding

For interior

For fashion

People also use #0C1C4B with

Dark Slate Gray Russian Violet Espresso Gainsboro Charcoal

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 16.4:1. Use

Subtle surface Use #BFCAEB for cards and hover fills. Tint 80

Avoid beside #110C4B — 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 #0C1C4B at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #0C1C4B;
  --color-base-rgb: 12 28 75;
  --color-base-oklch: oklch(24.7% 0.090 265.8);
  --color-50: #F1F4FD;
  --color-100: #DBE3FA;
  --color-200: #B9C8F3;
  --color-300: #89A0E6;
  --color-400: #5D7BD5;
  --color-500: #3B5BBA;
  --color-600: #344A8E;
  --color-700: #2A3964;
  --color-800: #1F2842;
  --color-900: #151A28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F1F4FD',
    100: '#DBE3FA',
    200: '#B9C8F3',
    300: '#89A0E6',
    400: '#5D7BD5',
    500: '#3B5BBA',
    600: '#344A8E',
    700: '#2A3964',
    800: '#1F2842',
    900: '#151A28',
  },
}

$base: #0C1C4B;
$base-ink: #FFFFFF;
$base-50: #F1F4FD;
$base-100: #DBE3FA;
$base-200: #B9C8F3;
$base-300: #89A0E6;
$base-400: #5D7BD5;
$base-500: #3B5BBA;
$base-600: #344A8E;
$base-700: #2A3964;
$base-800: #1F2842;
$base-900: #151A28;
$base-hover: #0A163C;
$base-subtle: #9DAEE2;

{
    "color": {
        "base": {
            "value": "#0C1C4B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F4FD",
                "type": "color"
            },
            "100": {
                "value": "#DBE3FA",
                "type": "color"
            },
            "200": {
                "value": "#B9C8F3",
                "type": "color"
            },
            "300": {
                "value": "#89A0E6",
                "type": "color"
            },
            "400": {
                "value": "#5D7BD5",
                "type": "color"
            },
            "500": {
                "value": "#3B5BBA",
                "type": "color"
            },
            "600": {
                "value": "#344A8E",
                "type": "color"
            },
            "700": {
                "value": "#2A3964",
                "type": "color"
            },
            "800": {
                "value": "#1F2842",
                "type": "color"
            },
            "900": {
                "value": "#151A28",
                "type": "color"
            }
        }
    }
}