What color is #03464E?

#03464E is a very dark, vivid cyan. In RGB it is rgb(3, 70, 78), and in HSL hsl(186, 93%, 16%).

Is #03464E accessible as text?

On white, #03464E has a contrast ratio of 10.55:1 (passes WCAG AA for body text); on black it is 1.99:1 (fails). For text placed on #03464E, use white for the best readability.

What is the closest Tailwind color to #03464E?

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

What colors go well with #03464E?

#03464E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4F0A03. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #03464E below.

Is #03464E good for buttons?

#03464E works well for buttons and highlights, but use white text on #03464E — black text only reaches 1.99:1, below the 4.5:1 needed for normal-size labels.

Is #03464E the same as CSS darkslategray?

No — #03464E is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#03464E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #03464E

Not just a swatch — here's how #03464E works with other colors. Named schemes with #03464E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #03464E Accent #A6C4BE Surface #DFDABE 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 #03464E 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.

Tech Product Signal · 5 colors

Signal #03464E Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #35676E

Brunswick Green is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Brunswick Green.

Vintage Leather Lead · 5 colors

Lead #03464E Secondary #715117 Surface #E3DCC0 Accent #395143 Anchor #56233F

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #03464E Secondary #56676A 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 #03464E 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 33/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

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

Naturalness 4/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 37/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 23/100

Low

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

UI accent fit 47/100

Moderate

Workable accent with care around contrast.

Surface fit 43/100

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 #03464E

For UI

For branding

For interior

For fashion

People also use #03464E with

Fern 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 10.6:1. Use

Subtle surface Use #B7EBF1 for cards and hover fills. Tint 80

Avoid beside #032E4F — 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 #03464E 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: #03464E;
  --color-base-rgb: 3 70 78;
  --color-base-oklch: oklch(36.1% 0.061 208.0);
  --color-50: #F0FDFE;
  --color-100: #D8FAFD;
  --color-200: #B1F4FC;
  --color-300: #7CE8F4;
  --color-400: #4CD7E6;
  --color-500: #29BCCC;
  --color-600: #278F9B;
  --color-700: #22656D;
  --color-800: #1A4247;
  --color-900: #12292B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  brunswick-green: {
    50: '#F0FDFE',
    100: '#D8FAFD',
    200: '#B1F4FC',
    300: '#7CE8F4',
    400: '#4CD7E6',
    500: '#29BCCC',
    600: '#278F9B',
    700: '#22656D',
    800: '#1A4247',
    900: '#12292B',
  },
}

$base: #03464E;
$base-ink: #FFFFFF;
$base-50: #F0FDFE;
$base-100: #D8FAFD;
$base-200: #B1F4FC;
$base-300: #7CE8F4;
$base-400: #4CD7E6;
$base-500: #29BCCC;
$base-600: #278F9B;
$base-700: #22656D;
$base-800: #1A4247;
$base-900: #12292B;
$base-hover: #02393F;
$base-subtle: #91E3EC;

{
    "color": {
        "base": {
            "value": "#03464E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FDFE",
                "type": "color"
            },
            "100": {
                "value": "#D8FAFD",
                "type": "color"
            },
            "200": {
                "value": "#B1F4FC",
                "type": "color"
            },
            "300": {
                "value": "#7CE8F4",
                "type": "color"
            },
            "400": {
                "value": "#4CD7E6",
                "type": "color"
            },
            "500": {
                "value": "#29BCCC",
                "type": "color"
            },
            "600": {
                "value": "#278F9B",
                "type": "color"
            },
            "700": {
                "value": "#22656D",
                "type": "color"
            },
            "800": {
                "value": "#1A4247",
                "type": "color"
            },
            "900": {
                "value": "#12292B",
                "type": "color"
            }
        }
    }
}