What color is #04474B?

#04474B is a very dark, vivid cyan. In RGB it is rgb(4, 71, 75), and in HSL hsl(183, 90%, 15%).

Is #04474B accessible as text?

On white, #04474B has a contrast ratio of 10.46:1 (passes WCAG AA for body text); on black it is 2.01:1 (fails). For text placed on #04474B, use white for the best readability.

What is the closest Tailwind color to #04474B?

The nearest Tailwind CSS token is teal-900 (#0B4F4A).

What colors go well with #04474B?

#04474B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #490704. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #04474B below.

Is #04474B good for buttons?

#04474B works well for buttons and highlights, but use white text on #04474B — black text only reaches 2.01:1, below the 4.5:1 needed for normal-size labels.

Is #04474B the same as CSS darkslategray?

No — #04474B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#04474B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #04474B

Not just a swatch — here's how #04474B works with other colors. Named schemes with #04474B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #04474B Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Brunswick Green 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 #04474B Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Brunswick Green 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 #04474B Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #36686B

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

Vintage Leather Lead · 5 colors

Lead #04474B Secondary #715017 Surface #E3DCC0 Accent #395143 Anchor #552340

Brunswick Green 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 #04474B Secondary #576869 Support #979286 Ink #16140F

Brunswick Green 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 Brunswick Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #04474B 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 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

Mid depth — usable as an accent or a muted ground.

Naturalness 7/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

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

Brand distinctiveness 23/100

Low

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

UI accent fit 47/100

Moderate

Workable accent with care around contrast.

Surface fit 43/100

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 #04474B

For UI

For branding

For interior

For fashion

People also use #04474B with

Dark 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 10.5:1. Use

Subtle surface Use #B8EDF0 for cards and hover fills. Tint 80

Avoid beside #042E49 — 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 #04474B at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #04474B;
  --color-base-rgb: 4 71 75;
  --color-base-oklch: oklch(36.3% 0.060 201.5);
  --color-50: #F0FEFE;
  --color-100: #D8FBFD;
  --color-200: #B2F7FB;
  --color-300: #7EECF2;
  --color-400: #4FDCE3;
  --color-500: #2BC2CA;
  --color-600: #299399;
  --color-700: #23686C;
  --color-800: #1B4446;
  --color-900: #122A2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  brunswick-green: {
    50: '#F0FEFE',
    100: '#D8FBFD',
    200: '#B2F7FB',
    300: '#7EECF2',
    400: '#4FDCE3',
    500: '#2BC2CA',
    600: '#299399',
    700: '#23686C',
    800: '#1B4446',
    900: '#122A2B',
  },
}

$base: #04474B;
$base-ink: #FFFFFF;
$base-50: #F0FEFE;
$base-100: #D8FBFD;
$base-200: #B2F7FB;
$base-300: #7EECF2;
$base-400: #4FDCE3;
$base-500: #2BC2CA;
$base-600: #299399;
$base-700: #23686C;
$base-800: #1B4446;
$base-900: #122A2B;
$base-hover: #03373A;
$base-subtle: #91E6EA;

{
    "color": {
        "base": {
            "value": "#04474B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FBFD",
                "type": "color"
            },
            "200": {
                "value": "#B2F7FB",
                "type": "color"
            },
            "300": {
                "value": "#7EECF2",
                "type": "color"
            },
            "400": {
                "value": "#4FDCE3",
                "type": "color"
            },
            "500": {
                "value": "#2BC2CA",
                "type": "color"
            },
            "600": {
                "value": "#299399",
                "type": "color"
            },
            "700": {
                "value": "#23686C",
                "type": "color"
            },
            "800": {
                "value": "#1B4446",
                "type": "color"
            },
            "900": {
                "value": "#122A2B",
                "type": "color"
            }
        }
    }
}