What color is #09404E?

#09404E is a very dark, vivid cyan. In RGB it is rgb(9, 64, 78), and in HSL hsl(192, 79%, 17%).

Is #09404E accessible as text?

On white, #09404E has a contrast ratio of 11.32:1 (passes WCAG AA for body text); on black it is 1.85:1 (fails). For text placed on #09404E, use white for the best readability.

What is the closest Tailwind color to #09404E?

The nearest Tailwind CSS token is cyan-950 (#053345).

What colors go well with #09404E?

#09404E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4E1709. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #09404E below.

Is #09404E good for buttons?

#09404E works well for buttons and highlights, but use white text on #09404E — black text only reaches 1.85:1, below the 4.5:1 needed for normal-size labels.

Is #09404E the same as CSS darkslategray?

No — #09404E is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#09404E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #09404E

Not just a swatch — here's how #09404E works with other colors. Named schemes with #09404E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #09404E Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E354A

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 #09404E Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A5 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 #09404E Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #35606E

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 #09404E Secondary #705116 Surface #E3DCC0 Accent #395244 Anchor #56233E

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 #09404E Secondary #536267 Support #969386 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 #09404E 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 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 67/100

High

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

Brand distinctiveness 22/100

Low

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

UI accent fit 42/100

Moderate

Workable accent with care around contrast.

Surface fit 45/100

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 #09404E

For UI

For branding

For interior

For fashion

People also use #09404E with

Pine 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 11.3:1. Use

Subtle surface Use #BDE3ED for cards and hover fills. Tint 80

Avoid beside #09294E — 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 #09404E 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: #09404E;
  --color-base-rgb: 9 64 78;
  --color-base-oklch: oklch(34.5% 0.058 219.9);
  --color-50: #F1FBFE;
  --color-100: #DAF5FC;
  --color-200: #B6E9F6;
  --color-300: #85D6EB;
  --color-400: #58C0DA;
  --color-500: #35A4C0;
  --color-600: #307E92;
  --color-700: #285B67;
  --color-800: #1D3C43;
  --color-900: #142529;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F1FBFE',
    100: '#DAF5FC',
    200: '#B6E9F6',
    300: '#85D6EB',
    400: '#58C0DA',
    500: '#35A4C0',
    600: '#307E92',
    700: '#285B67',
    800: '#1D3C43',
    900: '#142529',
  },
}

$base: #09404E;
$base-ink: #FFFFFF;
$base-50: #F1FBFE;
$base-100: #DAF5FC;
$base-200: #B6E9F6;
$base-300: #85D6EB;
$base-400: #58C0DA;
$base-500: #35A4C0;
$base-600: #307E92;
$base-700: #285B67;
$base-800: #1D3C43;
$base-900: #142529;
$base-hover: #07333E;
$base-subtle: #99D6E6;

{
    "color": {
        "base": {
            "value": "#09404E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FBFE",
                "type": "color"
            },
            "100": {
                "value": "#DAF5FC",
                "type": "color"
            },
            "200": {
                "value": "#B6E9F6",
                "type": "color"
            },
            "300": {
                "value": "#85D6EB",
                "type": "color"
            },
            "400": {
                "value": "#58C0DA",
                "type": "color"
            },
            "500": {
                "value": "#35A4C0",
                "type": "color"
            },
            "600": {
                "value": "#307E92",
                "type": "color"
            },
            "700": {
                "value": "#285B67",
                "type": "color"
            },
            "800": {
                "value": "#1D3C43",
                "type": "color"
            },
            "900": {
                "value": "#142529",
                "type": "color"
            }
        }
    }
}