What color is #0D3D53?

#0D3D53 is a dark, vivid cyan-blue. In RGB it is rgb(13, 61, 83), and in HSL hsl(199, 73%, 19%).

Is #0D3D53 accessible as text?

On white, #0D3D53 has a contrast ratio of 11.61:1 (passes WCAG AA for body text); on black it is 1.81:1 (fails). For text placed on #0D3D53, use white for the best readability.

What is the closest Tailwind color to #0D3D53?

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

What colors go well with #0D3D53?

#0D3D53 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #54230D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0D3D53 below.

Is #0D3D53 good for buttons?

#0D3D53 works well for buttons and highlights, but use white text on #0D3D53 — black text only reaches 1.81:1, below the 4.5:1 needed for normal-size labels.

Is #0D3D53 the same as CSS darkslategray?

No — #0D3D53 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#0D3D53 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0D3D53

Not just a swatch — here's how #0D3D53 works with other colors. Named schemes with #0D3D53 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #0D3D53 Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

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

Accent #0D3D53 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

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

Signal #0D3D53 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #365E73

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

Lead #0D3D53 Secondary #6F5216 Surface #E2DCC0 Accent #385244 Anchor #56233D

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

Surface #F6F4EF Accent #0D3D53 Secondary #526068 Support #969386 Ink #16140F

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.

Build a working theme in the generator →

Color Lab

How #0D3D53 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 31/100

Cool

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 64/100

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 67/100

High

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

Brand distinctiveness 24/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 42/100

Moderate

Workable accent with care around contrast.

Surface fit 44/100

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 #0D3D53

For UI

For branding

For interior

For fashion

People also use #0D3D53 with

Pine Green Navy Bistre Platinum 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 11.6:1. Use

Subtle surface Use #C0DEEB for cards and hover fills. Tint 80

Avoid beside #0D2654 — 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 #0D3D53 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: #0D3D53;
  --color-base-rgb: 13 61 83;
  --color-base-oklch: oklch(34.0% 0.062 233.2);
  --color-50: #F1FAFD;
  --color-100: #DBF0FA;
  --color-200: #B9E1F4;
  --color-300: #88C9E7;
  --color-400: #5DAFD5;
  --color-500: #3A92BB;
  --color-600: #33728E;
  --color-700: #2A5265;
  --color-800: #1F3742;
  --color-900: #152228;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  prussian-blue: {
    50: '#F1FAFD',
    100: '#DBF0FA',
    200: '#B9E1F4',
    300: '#88C9E7',
    400: '#5DAFD5',
    500: '#3A92BB',
    600: '#33728E',
    700: '#2A5265',
    800: '#1F3742',
    900: '#152228',
  },
}

$base: #0D3D53;
$base-ink: #FFFFFF;
$base-50: #F1FAFD;
$base-100: #DBF0FA;
$base-200: #B9E1F4;
$base-300: #88C9E7;
$base-400: #5DAFD5;
$base-500: #3A92BB;
$base-600: #33728E;
$base-700: #2A5265;
$base-800: #1F3742;
$base-900: #152228;
$base-hover: #0A3143;
$base-subtle: #9FCEE3;

{
    "color": {
        "base": {
            "value": "#0D3D53",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FAFD",
                "type": "color"
            },
            "100": {
                "value": "#DBF0FA",
                "type": "color"
            },
            "200": {
                "value": "#B9E1F4",
                "type": "color"
            },
            "300": {
                "value": "#88C9E7",
                "type": "color"
            },
            "400": {
                "value": "#5DAFD5",
                "type": "color"
            },
            "500": {
                "value": "#3A92BB",
                "type": "color"
            },
            "600": {
                "value": "#33728E",
                "type": "color"
            },
            "700": {
                "value": "#2A5265",
                "type": "color"
            },
            "800": {
                "value": "#1F3742",
                "type": "color"
            },
            "900": {
                "value": "#152228",
                "type": "color"
            }
        }
    }
}