What color is #0C404A?

#0C404A is a very dark, vivid cyan. In RGB it is rgb(12, 64, 74), and in HSL hsl(190, 72%, 17%).

Is #0C404A accessible as text?

On white, #0C404A has a contrast ratio of 11.36:1 (passes WCAG AA for body text); on black it is 1.85:1 (fails). For text placed on #0C404A, use white for the best readability.

What is the closest Tailwind color to #0C404A?

The nearest Tailwind CSS token is cyan-950 (#053345).

What colors go well with #0C404A?

#0C404A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4B170C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0C404A below.

Is #0C404A good for buttons?

#0C404A works well for buttons and highlights, but use white text on #0C404A — black text only reaches 1.85:1, below the 4.5:1 needed for normal-size labels.

Is #0C404A the same as CSS darkslategray?

No — #0C404A is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#0C404A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0C404A

Not just a swatch — here's how #0C404A works with other colors. Named schemes with #0C404A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0C404A Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1E3549

Gunmetal Gray 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 #0C404A Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Gunmetal Gray 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 #0C404A Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #37606A

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

Vintage Leather Lead · 5 colors

Lead #0C404A Secondary #705117 Surface #E3DCC0 Accent #395143 Anchor #56233F

Gunmetal Gray 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 #F6F4EF Accent #0C404A Secondary #536265 Support #969286 Ink #16140F

Gunmetal Gray 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 Gunmetal Gray carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #0C404A 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 34/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

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 41/100

Moderate

Workable accent with care around contrast.

Surface fit 46/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0C404A

For UI

For branding

For interior

For fashion

People also use #0C404A with

Hunter Green Navy Oxblood Platinum Dark Slate Gray

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 11.4:1. Use

Subtle surface Use #BFE3EB for cards and hover fills. Tint 80

Avoid beside #0C2B4B — 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 #0C404A 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

Every model

Export

:root {
  --color-base: #0C404A;
  --color-base-rgb: 12 64 74;
  --color-base-oklch: oklch(34.4% 0.054 213.8);
  --color-50: #F1FBFD;
  --color-100: #DBF5FA;
  --color-200: #B9EAF3;
  --color-300: #89D7E6;
  --color-400: #5DC1D5;
  --color-500: #3BA5BA;
  --color-600: #347F8E;
  --color-700: #2A5B64;
  --color-800: #1F3C42;
  --color-900: #152528;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F1FBFD',
    100: '#DBF5FA',
    200: '#B9EAF3',
    300: '#89D7E6',
    400: '#5DC1D5',
    500: '#3BA5BA',
    600: '#347F8E',
    700: '#2A5B64',
    800: '#1F3C42',
    900: '#152528',
  },
}

$base: #0C404A;
$base-ink: #FFFFFF;
$base-50: #F1FBFD;
$base-100: #DBF5FA;
$base-200: #B9EAF3;
$base-300: #89D7E6;
$base-400: #5DC1D5;
$base-500: #3BA5BA;
$base-600: #347F8E;
$base-700: #2A5B64;
$base-800: #1F3C42;
$base-900: #152528;
$base-hover: #0A333C;
$base-subtle: #9DD7E2;

{
    "color": {
        "base": {
            "value": "#0C404A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FBFD",
                "type": "color"
            },
            "100": {
                "value": "#DBF5FA",
                "type": "color"
            },
            "200": {
                "value": "#B9EAF3",
                "type": "color"
            },
            "300": {
                "value": "#89D7E6",
                "type": "color"
            },
            "400": {
                "value": "#5DC1D5",
                "type": "color"
            },
            "500": {
                "value": "#3BA5BA",
                "type": "color"
            },
            "600": {
                "value": "#347F8E",
                "type": "color"
            },
            "700": {
                "value": "#2A5B64",
                "type": "color"
            },
            "800": {
                "value": "#1F3C42",
                "type": "color"
            },
            "900": {
                "value": "#152528",
                "type": "color"
            }
        }
    }
}