What color is #03323D?

#03323D is a very dark, vivid cyan. In RGB it is rgb(3, 50, 61), and in HSL hsl(191, 91%, 13%).

Is #03323D accessible as text?

On white, #03323D has a contrast ratio of 13.75:1 (passes WCAG AA for body text); on black it is 1.53:1 (fails). For text placed on #03323D, use white for the best readability.

What is the closest Tailwind color to #03323D?

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

What colors go well with #03323D?

#03323D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3F0E03. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #03323D below.

Is #03323D good for buttons?

#03323D works well for buttons and highlights, but use white text on #03323D — black text only reaches 1.53:1, below the 4.5:1 needed for normal-size labels.

Is #03323D the same as CSS darkslategray?

No — #03323D is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#03323D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #03323D

Not just a swatch — here's how #03323D works with other colors. Named schemes with #03323D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #03323D Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E3549

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 #03323D Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 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 #03323D Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #2D515C

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 #03323D Secondary #705116 Surface #E3DCC0 Accent #395244 Anchor #56233E

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 #03323D Secondary #465357 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 #03323D 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 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 68/100

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 30/100

Low

A faint retro warmth without tipping into sepia.

Luxury 70/100

High

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

Brand distinctiveness 20/100

Very low

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

UI accent fit 27/100

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 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #03323D

For UI

For branding

For interior

For fashion

People also use #03323D 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 13.7:1. Use

Subtle surface Use #B6E5F0 for cards and hover fills. Tint 80

Avoid beside #03203F — 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 #03323D 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: #03323D;
  --color-base-rgb: 3 50 61;
  --color-base-oklch: oklch(29.3% 0.051 218.2);
  --color-50: #F0FCFE;
  --color-100: #D8F6FD;
  --color-200: #B1EEFB;
  --color-300: #7DDDF2;
  --color-400: #4EC9E4;
  --color-500: #2AADCB;
  --color-600: #28859A;
  --color-700: #235F6C;
  --color-800: #1B3E46;
  --color-900: #12262B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  prussian-blue: {
    50: '#F0FCFE',
    100: '#D8F6FD',
    200: '#B1EEFB',
    300: '#7DDDF2',
    400: '#4EC9E4',
    500: '#2AADCB',
    600: '#28859A',
    700: '#235F6C',
    800: '#1B3E46',
    900: '#12262B',
  },
}

$base: #03323D;
$base-ink: #FFFFFF;
$base-50: #F0FCFE;
$base-100: #D8F6FD;
$base-200: #B1EEFB;
$base-300: #7DDDF2;
$base-400: #4EC9E4;
$base-500: #2AADCB;
$base-600: #28859A;
$base-700: #235F6C;
$base-800: #1B3E46;
$base-900: #12262B;
$base-hover: #022A33;
$base-subtle: #8EDAEA;

{
    "color": {
        "base": {
            "value": "#03323D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FCFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F6FD",
                "type": "color"
            },
            "200": {
                "value": "#B1EEFB",
                "type": "color"
            },
            "300": {
                "value": "#7DDDF2",
                "type": "color"
            },
            "400": {
                "value": "#4EC9E4",
                "type": "color"
            },
            "500": {
                "value": "#2AADCB",
                "type": "color"
            },
            "600": {
                "value": "#28859A",
                "type": "color"
            },
            "700": {
                "value": "#235F6C",
                "type": "color"
            },
            "800": {
                "value": "#1B3E46",
                "type": "color"
            },
            "900": {
                "value": "#12262B",
                "type": "color"
            }
        }
    }
}