What color is #034C4A?

#034C4A is a very dark, vivid cyan. In RGB it is rgb(3, 76, 74), and in HSL hsl(178, 92%, 15%).

Is #034C4A accessible as text?

On white, #034C4A has a contrast ratio of 9.83:1 (passes WCAG AA for body text); on black it is 2.14:1 (fails). For text placed on #034C4A, use white for the best readability.

What is the closest Tailwind color to #034C4A?

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

What colors go well with #034C4A?

#034C4A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #490305. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #034C4A below.

Is #034C4A good for buttons?

#034C4A works well for buttons and highlights, but use white text on #034C4A — black text only reaches 2.14:1, below the 4.5:1 needed for normal-size labels.

Is #034C4A the same as CSS darkslategray?

No — #034C4A is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#034C4A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #034C4A

Not just a swatch — here's how #034C4A works with other colors. Named schemes with #034C4A in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #034C4A Accent #A7C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

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 #034C4A Secondary #AEB4B8 Surface #F1F2F0 Support #7994A4 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 #034C4A Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #552341

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 #034C4A Anchor #141210 Accent #B9A94D Secondary #1D2C2B 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 #034C4A Secondary #5A6C6B 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 #034C4A 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 60/100

High

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

Naturalness 14/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 64/100

High

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

Brand distinctiveness 25/100

Low

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

UI accent fit 52/100

Moderate

Workable accent with care around contrast.

Surface fit 41/100

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 #034C4A

For UI

For branding

For interior

For fashion

People also use #034C4A 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 9.8:1. Use

Subtle surface Use #B7F0EE for cards and hover fills. Tint 80

Avoid beside #033449 — 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 #034C4A at work across the surfaces designers actually ship.

Website / UI

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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: #034C4A;
  --color-base-rgb: 3 76 74;
  --color-base-oklch: oklch(37.7% 0.064 191.7);
  --color-50: #F0FEFE;
  --color-100: #D8FDFC;
  --color-200: #B1FCF9;
  --color-300: #7CF3EF;
  --color-400: #4DE5E0;
  --color-500: #29CBC6;
  --color-600: #289A96;
  --color-700: #226D6A;
  --color-800: #1A4745;
  --color-900: #122B2A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  brunswick-green: {
    50: '#F0FEFE',
    100: '#D8FDFC',
    200: '#B1FCF9',
    300: '#7CF3EF',
    400: '#4DE5E0',
    500: '#29CBC6',
    600: '#289A96',
    700: '#226D6A',
    800: '#1A4745',
    900: '#122B2A',
  },
}

$base: #034C4A;
$base-ink: #FFFFFF;
$base-50: #F0FEFE;
$base-100: #D8FDFC;
$base-200: #B1FCF9;
$base-300: #7CF3EF;
$base-400: #4DE5E0;
$base-500: #29CBC6;
$base-600: #289A96;
$base-700: #226D6A;
$base-800: #1A4745;
$base-900: #122B2A;
$base-hover: #023B39;
$base-subtle: #91EBE8;

{
    "color": {
        "base": {
            "value": "#034C4A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FDFC",
                "type": "color"
            },
            "200": {
                "value": "#B1FCF9",
                "type": "color"
            },
            "300": {
                "value": "#7CF3EF",
                "type": "color"
            },
            "400": {
                "value": "#4DE5E0",
                "type": "color"
            },
            "500": {
                "value": "#29CBC6",
                "type": "color"
            },
            "600": {
                "value": "#289A96",
                "type": "color"
            },
            "700": {
                "value": "#226D6A",
                "type": "color"
            },
            "800": {
                "value": "#1A4745",
                "type": "color"
            },
            "900": {
                "value": "#122B2A",
                "type": "color"
            }
        }
    }
}

Palettes built on #034C4A

Color Lab

Pairs with #034C4A

UI roles & guardrails

In real applications

Scales

Every model

Export