What color is #0A401B?

#0A401B is a very dark, vivid green. In RGB it is rgb(10, 64, 27), and in HSL hsl(139, 73%, 15%).

Is #0A401B accessible as text?

On white, #0A401B has a contrast ratio of 11.92:1 (passes WCAG AA for body text); on black it is 1.76:1 (fails). For text placed on #0A401B, use white for the best readability.

What is the closest Tailwind color to #0A401B?

The nearest Tailwind CSS token is emerald-900 (#004F3B).

What colors go well with #0A401B?

#0A401B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #420A30. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0A401B below.

Is #0A401B good for buttons?

#0A401B works well for buttons and highlights, but use white text on #0A401B — black text only reaches 1.76:1, below the 4.5:1 needed for normal-size labels.

Is #0A401B the same as CSS darkslategray?

No — #0A401B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#0A401B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0A401B

Not just a swatch — here's how #0A401B works with other colors. Named schemes with #0A401B in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #0A401B Secondary #4B6C3C Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

British Racing Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Vintage Leather Lead · 5 colors

Lead #0A401B Secondary #754E1B Surface #E5DBC0 Accent #3C5140 Anchor #5B2321

British Racing 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.

Japanese Sand Base · 5 colors

Base #0A401B Surface #EEEADC Highlight #F5F1E7 Secondary #B6B09F Ink #2B2723

British Racing Green sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Luxury Packaging Feature · 5 colors

Feature #0A401B Anchor #141210 Accent #C0A74B Secondary #222C24 Surface #F1EDE3

British Racing 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 #0A401B Secondary #4F5F51 Support #989286 Ink #17140F

British Racing 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 British Racing Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #0A401B 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 46/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

High

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

Naturalness 95/100

Very high

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 50/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 70/100

High

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

Brand distinctiveness 32/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 43/100

Moderate

Workable accent with care around contrast.

Surface fit 38/100

Low

Usable as a tinted surface in measured doses.

Print safety 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0A401B

For UI

For branding

For interior

For fashion

People also use #0A401B with

Dark Green Bottle Green Deep Purple Platinum Hunter Green

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 11.9:1. Use

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

Avoid beside #0A422F — 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 #0A401B 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: #0A401B;
  --color-base-rgb: 10 64 27;
  --color-base-oklch: oklch(32.8% 0.084 149.1);
  --color-50: #F1FDF5;
  --color-100: #DBFAE5;
  --color-200: #B9F4CB;
  --color-300: #88E7A6;
  --color-400: #5DD583;
  --color-500: #3ABB63;
  --color-600: #338E50;
  --color-700: #2A653D;
  --color-800: #1F422A;
  --color-900: #15281B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  british-racing-green: {
    50: '#F1FDF5',
    100: '#DBFAE5',
    200: '#B9F4CB',
    300: '#88E7A6',
    400: '#5DD583',
    500: '#3ABB63',
    600: '#338E50',
    700: '#2A653D',
    800: '#1F422A',
    900: '#15281B',
  },
}

$base: #0A401B;
$base-ink: #FFFFFF;
$base-50: #F1FDF5;
$base-100: #DBFAE5;
$base-200: #B9F4CB;
$base-300: #88E7A6;
$base-400: #5DD583;
$base-500: #3ABB63;
$base-600: #338E50;
$base-700: #2A653D;
$base-800: #1F422A;
$base-900: #15281B;
$base-hover: #083516;
$base-subtle: #9AE2B1;

{
    "color": {
        "base": {
            "value": "#0A401B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FDF5",
                "type": "color"
            },
            "100": {
                "value": "#DBFAE5",
                "type": "color"
            },
            "200": {
                "value": "#B9F4CB",
                "type": "color"
            },
            "300": {
                "value": "#88E7A6",
                "type": "color"
            },
            "400": {
                "value": "#5DD583",
                "type": "color"
            },
            "500": {
                "value": "#3ABB63",
                "type": "color"
            },
            "600": {
                "value": "#338E50",
                "type": "color"
            },
            "700": {
                "value": "#2A653D",
                "type": "color"
            },
            "800": {
                "value": "#1F422A",
                "type": "color"
            },
            "900": {
                "value": "#15281B",
                "type": "color"
            }
        }
    }
}