What color is #034A43?

#034A43 is a very dark, vivid teal. In RGB it is rgb(3, 74, 67), and in HSL hsl(174, 92%, 15%).

Is #034A43 accessible as text?

On white, #034A43 has a contrast ratio of 10.17:1 (passes WCAG AA for body text); on black it is 2.06:1 (fails). For text placed on #034A43, use white for the best readability.

What is the closest Tailwind color to #034A43?

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

What colors go well with #034A43?

#034A43 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #49030A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #034A43 below.

Is #034A43 good for buttons?

#034A43 works well for buttons and highlights, but use white text on #034A43 — black text only reaches 2.06:1, below the 4.5:1 needed for normal-size labels.

Is #034A43 the same as CSS darkslategray?

No — #034A43 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#034A43 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #034A43

Not just a swatch — here's how #034A43 works with other colors. Named schemes with #034A43 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #034A43 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 #034A43 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 #034A43 Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #5B241E

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 #034A43 Anchor #141210 Accent #BAA94D Secondary #1E2C2A 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 #034A43 Secondary #586A67 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 #034A43 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 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 61/100

High

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

Naturalness 23/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 42/100

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 25/100

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 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #034A43

For UI

For branding

For interior

For fashion

People also use #034A43 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 10.2:1. Use

Subtle surface Use #B7F0EB for cards and hover fills. Tint 80

Avoid beside #033949 — 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 #034A43 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: #034A43;
  --color-base-rgb: 3 74 67;
  --color-base-oklch: oklch(36.8% 0.064 184.0);
  --color-50: #F0FEFD;
  --color-100: #D8FDFA;
  --color-200: #B1FCF4;
  --color-300: #7CF3E7;
  --color-400: #4DE5D6;
  --color-500: #29CBBB;
  --color-600: #289A8F;
  --color-700: #226D65;
  --color-800: #1A4742;
  --color-900: #122B29;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  brunswick-green: {
    50: '#F0FEFD',
    100: '#D8FDFA',
    200: '#B1FCF4',
    300: '#7CF3E7',
    400: '#4DE5D6',
    500: '#29CBBB',
    600: '#289A8F',
    700: '#226D65',
    800: '#1A4742',
    900: '#122B29',
  },
}

$base: #034A43;
$base-ink: #FFFFFF;
$base-50: #F0FEFD;
$base-100: #D8FDFA;
$base-200: #B1FCF4;
$base-300: #7CF3E7;
$base-400: #4DE5D6;
$base-500: #29CBBB;
$base-600: #289A8F;
$base-700: #226D65;
$base-800: #1A4742;
$base-900: #122B29;
$base-hover: #023B35;
$base-subtle: #91EBE2;

{
    "color": {
        "base": {
            "value": "#034A43",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFD",
                "type": "color"
            },
            "100": {
                "value": "#D8FDFA",
                "type": "color"
            },
            "200": {
                "value": "#B1FCF4",
                "type": "color"
            },
            "300": {
                "value": "#7CF3E7",
                "type": "color"
            },
            "400": {
                "value": "#4DE5D6",
                "type": "color"
            },
            "500": {
                "value": "#29CBBB",
                "type": "color"
            },
            "600": {
                "value": "#289A8F",
                "type": "color"
            },
            "700": {
                "value": "#226D65",
                "type": "color"
            },
            "800": {
                "value": "#1A4742",
                "type": "color"
            },
            "900": {
                "value": "#122B29",
                "type": "color"
            }
        }
    }
}

Palettes built on #034A43

Color Lab

Pairs with #034A43

UI roles & guardrails

In real applications

Scales

Every model

Export