What color is #08373B?

#08373B is a very dark, vivid cyan. In RGB it is rgb(8, 55, 59), and in HSL hsl(185, 76%, 13%).

Is #08373B accessible as text?

On white, #08373B has a contrast ratio of 12.96:1 (passes WCAG AA for body text); on black it is 1.62:1 (fails). For text placed on #08373B, use white for the best readability.

What is the closest Tailwind color to #08373B?

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

What colors go well with #08373B?

#08373B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3A0C08. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #08373B below.

Is #08373B good for buttons?

#08373B works well for buttons and highlights, but use white text on #08373B — black text only reaches 1.62:1, below the 4.5:1 needed for normal-size labels.

Is #08373B the same as CSS darkslategray?

No — #08373B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#08373B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #08373B

Not just a swatch — here's how #08373B works with other colors. Named schemes with #08373B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #08373B Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Bottle 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 #08373B Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Bottle 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 #08373B Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #31575A

Bottle 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 Bottle Green.

Vintage Leather Lead · 5 colors

Lead #08373B Secondary #715017 Surface #E3DCC0 Accent #395143 Anchor #552340

Bottle 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 #08373B Secondary #4B5859 Support #979286 Ink #16140F

Bottle 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 Bottle Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #08373B 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 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

High

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

Naturalness 5/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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

Brand distinctiveness 19/100

Very low

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

UI accent fit 30/100

Low

Workable accent with care around contrast.

Surface fit 50/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #08373B

For UI

For branding

For interior

For fashion

People also use #08373B with

Castleton 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 13.0:1. Use

Subtle surface Use #BAE7EB for cards and hover fills. Tint 80

Avoid beside #08253A — 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 #08373B 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: #08373B;
  --color-base-rgb: 8 55 59;
  --color-base-oklch: oklch(30.9% 0.048 203.6);
  --color-50: #F1FDFE;
  --color-100: #DAF8FB;
  --color-200: #B7F0F5;
  --color-300: #87E0E9;
  --color-400: #5ACDD8;
  --color-500: #37B2BD;
  --color-600: #328890;
  --color-700: #296166;
  --color-800: #1E4043;
  --color-900: #142729;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bottle-green: {
    50: '#F1FDFE',
    100: '#DAF8FB',
    200: '#B7F0F5',
    300: '#87E0E9',
    400: '#5ACDD8',
    500: '#37B2BD',
    600: '#328890',
    700: '#296166',
    800: '#1E4043',
    900: '#142729',
  },
}

$base: #08373B;
$base-ink: #FFFFFF;
$base-50: #F1FDFE;
$base-100: #DAF8FB;
$base-200: #B7F0F5;
$base-300: #87E0E9;
$base-400: #5ACDD8;
$base-500: #37B2BD;
$base-600: #328890;
$base-700: #296166;
$base-800: #1E4043;
$base-900: #142729;
$base-hover: #062B2F;
$base-subtle: #96DCE3;

{
    "color": {
        "base": {
            "value": "#08373B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FDFE",
                "type": "color"
            },
            "100": {
                "value": "#DAF8FB",
                "type": "color"
            },
            "200": {
                "value": "#B7F0F5",
                "type": "color"
            },
            "300": {
                "value": "#87E0E9",
                "type": "color"
            },
            "400": {
                "value": "#5ACDD8",
                "type": "color"
            },
            "500": {
                "value": "#37B2BD",
                "type": "color"
            },
            "600": {
                "value": "#328890",
                "type": "color"
            },
            "700": {
                "value": "#296166",
                "type": "color"
            },
            "800": {
                "value": "#1E4043",
                "type": "color"
            },
            "900": {
                "value": "#142729",
                "type": "color"
            }
        }
    }
}