What color is #034D43?

#034D43 is a very dark, vivid teal. In RGB it is rgb(3, 77, 67), and in HSL hsl(172, 93%, 16%).

Is #034D43 accessible as text?

On white, #034D43 has a contrast ratio of 9.78:1 (passes WCAG AA for body text); on black it is 2.15:1 (fails). For text placed on #034D43, use white for the best readability.

What is the closest Tailwind color to #034D43?

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

What colors go well with #034D43?

#034D43 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4F030D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #034D43 below.

Is #034D43 good for buttons?

#034D43 works well for buttons and highlights, but use white text on #034D43 — black text only reaches 2.15:1, below the 4.5:1 needed for normal-size labels.

Is #034D43 the same as CSS darkslategray?

No — #034D43 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#034D43 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #034D43

Not just a swatch — here's how #034D43 works with other colors. Named schemes with #034D43 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #034D43 Accent #A7C4BC 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 #034D43 Secondary #AEB4B7 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 #034D43 Secondary #734F19 Surface #E4DCC0 Accent #3A5142 Anchor #5B231E

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 #034D43 Anchor #141210 Accent #BBA94C Secondary #1E2C29 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 #F7F4EF Accent #034D43 Secondary #5A6D69 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.

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Color Lab

How #034D43 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 37/100

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 29/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 44/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

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

Brand distinctiveness 26/100

Low

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

UI accent fit 54/100

Moderate

Workable accent with care around contrast.

Surface fit 40/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #034D43

For UI

For branding

For interior

For fashion

People also use #034D43 with

Green Prussian Blue 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 #B7F1E9 for cards and hover fills. Tint 80

Avoid beside #03404F — 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 #034D43 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: #034D43;
  --color-base-rgb: 3 77 67;
  --color-base-oklch: oklch(37.7% 0.067 180.1);
  --color-50: #F0FEFD;
  --color-100: #D8FDF8;
  --color-200: #B1FCF2;
  --color-300: #7CF4E4;
  --color-400: #4CE6D1;
  --color-500: #29CCB6;
  --color-600: #279B8B;
  --color-700: #226D63;
  --color-800: #1A4741;
  --color-900: #122B28;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  brunswick-green: {
    50: '#F0FEFD',
    100: '#D8FDF8',
    200: '#B1FCF2',
    300: '#7CF4E4',
    400: '#4CE6D1',
    500: '#29CCB6',
    600: '#279B8B',
    700: '#226D63',
    800: '#1A4741',
    900: '#122B28',
  },
}

$base: #034D43;
$base-ink: #FFFFFF;
$base-50: #F0FEFD;
$base-100: #D8FDF8;
$base-200: #B1FCF2;
$base-300: #7CF4E4;
$base-400: #4CE6D1;
$base-500: #29CCB6;
$base-600: #279B8B;
$base-700: #226D63;
$base-800: #1A4741;
$base-900: #122B28;
$base-hover: #023F37;
$base-subtle: #91ECE0;

{
    "color": {
        "base": {
            "value": "#034D43",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFD",
                "type": "color"
            },
            "100": {
                "value": "#D8FDF8",
                "type": "color"
            },
            "200": {
                "value": "#B1FCF2",
                "type": "color"
            },
            "300": {
                "value": "#7CF4E4",
                "type": "color"
            },
            "400": {
                "value": "#4CE6D1",
                "type": "color"
            },
            "500": {
                "value": "#29CCB6",
                "type": "color"
            },
            "600": {
                "value": "#279B8B",
                "type": "color"
            },
            "700": {
                "value": "#226D63",
                "type": "color"
            },
            "800": {
                "value": "#1A4741",
                "type": "color"
            },
            "900": {
                "value": "#122B28",
                "type": "color"
            }
        }
    }
}

Palettes built on #034D43

Color Lab

Pairs with #034D43

UI roles & guardrails

In real applications

Scales

Every model

Export