What color is #034C3F?

#034C3F is a very dark, vivid teal. In RGB it is rgb(3, 76, 63), and in HSL hsl(169, 92%, 15%).

Is #034C3F accessible as text?

On white, #034C3F has a contrast ratio of 9.96:1 (passes WCAG AA for body text); on black it is 2.11:1 (fails). For text placed on #034C3F, use white for the best readability.

What is the closest Tailwind color to #034C3F?

The nearest Tailwind CSS token is emerald-900 (#004F3B).

What colors go well with #034C3F?

#034C3F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #490310. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #034C3F below.

Is #034C3F good for buttons?

#034C3F works well for buttons and highlights, but use white text on #034C3F — black text only reaches 2.11:1, below the 4.5:1 needed for normal-size labels.

Is #034C3F the same as CSS darkslategray?

No — #034C3F is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#034C3F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #034C3F

Not just a swatch — here's how #034C3F works with other colors. Named schemes with #034C3F in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #034C3F Accent #A7C4BC Surface #E0D9BE Secondary #9AA0A0 Anchor #1B3549

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 #034C3F Secondary #ADB4B7 Surface #F1F2F0 Support #7994A4 Anchor #2D3236

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 #034C3F Secondary #734F19 Surface #E4DCC0 Accent #3B5141 Anchor #5B231F

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 #034C3F Anchor #141210 Accent #BBA84C Secondary #1E2C28 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 #034C3F Secondary #596C66 Support #989286 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 #034C3F 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 38/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 61/100

High

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

Naturalness 36/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 45/100

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 53/100

Moderate

Workable accent with care around contrast.

Surface fit 40/100

Low

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 #034C3F

For UI

For branding

For interior

For fashion

People also use #034C3F with

Dark 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 10.0:1. Use

Subtle surface Use #B7F0E6 for cards and hover fills. Tint 80

Avoid beside #033F49 — 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 #034C3F 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: #034C3F;
  --color-base-rgb: 3 76 63;
  --color-base-oklch: oklch(37.3% 0.068 176.0);
  --color-50: #F0FEFC;
  --color-100: #D8FDF6;
  --color-200: #B1FCEE;
  --color-300: #7CF3DD;
  --color-400: #4DE5C9;
  --color-500: #29CBAE;
  --color-600: #289A85;
  --color-700: #226D5F;
  --color-800: #1A473E;
  --color-900: #122B26;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  brunswick-green: {
    50: '#F0FEFC',
    100: '#D8FDF6',
    200: '#B1FCEE',
    300: '#7CF3DD',
    400: '#4DE5C9',
    500: '#29CBAE',
    600: '#289A85',
    700: '#226D5F',
    800: '#1A473E',
    900: '#122B26',
  },
}

$base: #034C3F;
$base-ink: #FFFFFF;
$base-50: #F0FEFC;
$base-100: #D8FDF6;
$base-200: #B1FCEE;
$base-300: #7CF3DD;
$base-400: #4DE5C9;
$base-500: #29CBAE;
$base-600: #289A85;
$base-700: #226D5F;
$base-800: #1A473E;
$base-900: #122B26;
$base-hover: #023B30;
$base-subtle: #91EBDB;

{
    "color": {
        "base": {
            "value": "#034C3F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFC",
                "type": "color"
            },
            "100": {
                "value": "#D8FDF6",
                "type": "color"
            },
            "200": {
                "value": "#B1FCEE",
                "type": "color"
            },
            "300": {
                "value": "#7CF3DD",
                "type": "color"
            },
            "400": {
                "value": "#4DE5C9",
                "type": "color"
            },
            "500": {
                "value": "#29CBAE",
                "type": "color"
            },
            "600": {
                "value": "#289A85",
                "type": "color"
            },
            "700": {
                "value": "#226D5F",
                "type": "color"
            },
            "800": {
                "value": "#1A473E",
                "type": "color"
            },
            "900": {
                "value": "#122B26",
                "type": "color"
            }
        }
    }
}