What color is #034A4B?

#034A4B is a very dark, vivid cyan. In RGB it is rgb(3, 74, 75), and in HSL hsl(181, 92%, 15%).

Is #034A4B accessible as text?

On white, #034A4B has a contrast ratio of 10.07:1 (passes WCAG AA for body text); on black it is 2.08:1 (fails). For text placed on #034A4B, use white for the best readability.

What is the closest Tailwind color to #034A4B?

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

What colors go well with #034A4B?

#034A4B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #490403. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #034A4B below.

Is #034A4B good for buttons?

#034A4B works well for buttons and highlights, but use white text on #034A4B — black text only reaches 2.08:1, below the 4.5:1 needed for normal-size labels.

Is #034A4B the same as CSS darkslategray?

No — #034A4B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#034A4B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #034A4B

Not just a swatch — here's how #034A4B works with other colors. Named schemes with #034A4B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #034A4B Accent #A6C4BD Surface #E0DABE 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 #034A4B 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.

Vintage Leather Lead · 5 colors

Lead #034A4B Secondary #715018 Surface #E3DCC0 Accent #3A5142 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.

Luxury Packaging Feature · 5 colors

Feature #034A4B Anchor #141210 Accent #B8AA4D Secondary #1D2C2C Surface #F1EDE3

Brunswick Green carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #034A4B Secondary #586B6B 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 #034A4B 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 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 61/100

High

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

Naturalness 10/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 40/100

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 24/100

Low

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

UI accent fit 50/100

Moderate

Workable accent with care around contrast.

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 #034A4B

For UI

For branding

For interior

For fashion

People also use #034A4B 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 10.1:1. Use

Subtle surface Use #B7EFF0 for cards and hover fills. Tint 80

Avoid beside #033149 — 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 #034A4B 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: #034A4B;
  --color-base-rgb: 3 74 75;
  --color-base-oklch: oklch(37.1% 0.062 196.4);
  --color-50: #F0FEFE;
  --color-100: #D8FDFD;
  --color-200: #B1FAFC;
  --color-300: #7CF1F3;
  --color-400: #4DE3E5;
  --color-500: #29C9CB;
  --color-600: #28989A;
  --color-700: #226B6D;
  --color-800: #1A4647;
  --color-900: #122B2B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  brunswick-green: {
    50: '#F0FEFE',
    100: '#D8FDFD',
    200: '#B1FAFC',
    300: '#7CF1F3',
    400: '#4DE3E5',
    500: '#29C9CB',
    600: '#28989A',
    700: '#226B6D',
    800: '#1A4647',
    900: '#122B2B',
  },
}

$base: #034A4B;
$base-ink: #FFFFFF;
$base-50: #F0FEFE;
$base-100: #D8FDFD;
$base-200: #B1FAFC;
$base-300: #7CF1F3;
$base-400: #4DE3E5;
$base-500: #29C9CB;
$base-600: #28989A;
$base-700: #226B6D;
$base-800: #1A4647;
$base-900: #122B2B;
$base-hover: #023A3B;
$base-subtle: #91EAEB;

{
    "color": {
        "base": {
            "value": "#034A4B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FDFD",
                "type": "color"
            },
            "200": {
                "value": "#B1FAFC",
                "type": "color"
            },
            "300": {
                "value": "#7CF1F3",
                "type": "color"
            },
            "400": {
                "value": "#4DE3E5",
                "type": "color"
            },
            "500": {
                "value": "#29C9CB",
                "type": "color"
            },
            "600": {
                "value": "#28989A",
                "type": "color"
            },
            "700": {
                "value": "#226B6D",
                "type": "color"
            },
            "800": {
                "value": "#1A4647",
                "type": "color"
            },
            "900": {
                "value": "#122B2B",
                "type": "color"
            }
        }
    }
}