What color is #01434E?

#01434E is a very dark, vivid cyan. In RGB it is rgb(1, 67, 78), and in HSL hsl(189, 97%, 15%).

Is #01434E accessible as text?

On white, #01434E has a contrast ratio of 10.97:1 (passes WCAG AA for body text); on black it is 1.91:1 (fails). For text placed on #01434E, use white for the best readability.

What is the closest Tailwind color to #01434E?

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

What colors go well with #01434E?

#01434E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4B0C01. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #01434E below.

Is #01434E good for buttons?

#01434E works well for buttons and highlights, but use white text on #01434E — black text only reaches 1.91:1, below the 4.5:1 needed for normal-size labels.

Is #01434E the same as CSS darkslategray?

No — #01434E is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#01434E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #01434E

Not just a swatch — here's how #01434E works with other colors. Named schemes with #01434E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #01434E Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1E3549

Charcoal 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 #01434E Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Charcoal 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 #01434E Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #33646E

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

Vintage Leather Lead · 5 colors

Lead #01434E Secondary #705117 Surface #E3DCC0 Accent #395143 Anchor #56233F

Charcoal 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 #01434E Secondary #546468 Support #979286 Ink #16140F

Charcoal 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 Charcoal carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #01434E 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 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 3/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 36/100

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 24/100

Low

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

UI accent fit 45/100

Moderate

Workable accent with care around contrast.

Surface fit 44/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #01434E

For UI

For branding

For interior

For fashion

People also use #01434E 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 11.0:1. Use

Subtle surface Use #B5E9F2 for cards and hover fills. Tint 80

Avoid beside #01274B — 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 #01434E 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: #01434E;
  --color-base-rgb: 1 67 78;
  --color-base-oklch: oklch(35.2% 0.061 213.1);
  --color-50: #F0FCFE;
  --color-100: #D8F8FD;
  --color-200: #B1F0FC;
  --color-300: #79E3F6;
  --color-400: #49D1E9;
  --color-500: #25B6D0;
  --color-600: #258B9D;
  --color-700: #20636F;
  --color-800: #194148;
  --color-900: #11282C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F0FCFE',
    100: '#D8F8FD',
    200: '#B1F0FC',
    300: '#79E3F6',
    400: '#49D1E9',
    500: '#25B6D0',
    600: '#258B9D',
    700: '#20636F',
    800: '#194148',
    900: '#11282C',
  },
}

$base: #01434E;
$base-ink: #FFFFFF;
$base-50: #F0FCFE;
$base-100: #D8F8FD;
$base-200: #B1F0FC;
$base-300: #79E3F6;
$base-400: #49D1E9;
$base-500: #25B6D0;
$base-600: #258B9D;
$base-700: #20636F;
$base-800: #194148;
$base-900: #11282C;
$base-hover: #01333C;
$base-subtle: #8EE0EE;

{
    "color": {
        "base": {
            "value": "#01434E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FCFE",
                "type": "color"
            },
            "100": {
                "value": "#D8F8FD",
                "type": "color"
            },
            "200": {
                "value": "#B1F0FC",
                "type": "color"
            },
            "300": {
                "value": "#79E3F6",
                "type": "color"
            },
            "400": {
                "value": "#49D1E9",
                "type": "color"
            },
            "500": {
                "value": "#25B6D0",
                "type": "color"
            },
            "600": {
                "value": "#258B9D",
                "type": "color"
            },
            "700": {
                "value": "#20636F",
                "type": "color"
            },
            "800": {
                "value": "#194148",
                "type": "color"
            },
            "900": {
                "value": "#11282C",
                "type": "color"
            }
        }
    }
}