What color is #12401B?

#12401B is a very dark green. In RGB it is rgb(18, 64, 27), and in HSL hsl(132, 56%, 16%).

Is #12401B accessible as text?

On white, #12401B has a contrast ratio of 11.83:1 (passes WCAG AA for body text); on black it is 1.77:1 (fails). For text placed on #12401B, use white for the best readability.

What is the closest Tailwind color to #12401B?

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

What colors go well with #12401B?

#12401B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #401237. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #12401B below.

Is #12401B good for buttons?

#12401B works well for buttons and highlights, but use white text on #12401B — black text only reaches 1.77:1, below the 4.5:1 needed for normal-size labels.

Is #12401B the same as CSS darkslategray?

No — #12401B 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.

#12401B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #12401B

Not just a swatch — here's how #12401B works with other colors. Named schemes with #12401B in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #12401B Secondary #4C6B3C 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 #12401B Secondary #754E1B Surface #E6DBC0 Accent #3C5140 Anchor #5B2322

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 #12401B Surface #EEE9DC 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 #12401B Anchor #141210 Accent #C0A64B Secondary #222C23 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 #12401B Secondary #515F52 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 #12401B 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 47/100

Neutral

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

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 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 31/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 43/100

Moderate

Workable accent with care around contrast.

Surface fit 39/100

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 #12401B

For UI

For branding

For interior

For fashion

People also use #12401B with

Hunter Green Bottle Green Deep Purple Platinum

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 11.8:1. Use

Subtle surface Use #C3E5CA for cards and hover fills. Tint 80

Avoid beside #12402A — 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 #12401B 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: #12401B;
  --color-base-rgb: 18 64 27;
  --color-base-oklch: oklch(33.0% 0.080 147.1);
  --color-50: #F3FCF5;
  --color-100: #DFF7E3;
  --color-200: #BFEDC9;
  --color-300: #93DCA2;
  --color-400: #6BC77D;
  --color-500: #49AC5D;
  --color-600: #3E844C;
  --color-700: #315E3A;
  --color-800: #233E28;
  --color-900: #17261A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  british-racing-green: {
    50: '#F3FCF5',
    100: '#DFF7E3',
    200: '#BFEDC9',
    300: '#93DCA2',
    400: '#6BC77D',
    500: '#49AC5D',
    600: '#3E844C',
    700: '#315E3A',
    800: '#233E28',
    900: '#17261A',
  },
}

$base: #12401B;
$base-ink: #FFFFFF;
$base-50: #F3FCF5;
$base-100: #DFF7E3;
$base-200: #BFEDC9;
$base-300: #93DCA2;
$base-400: #6BC77D;
$base-500: #49AC5D;
$base-600: #3E844C;
$base-700: #315E3A;
$base-800: #233E28;
$base-900: #17261A;
$base-hover: #0E3316;
$base-subtle: #A3DAAE;

{
    "color": {
        "base": {
            "value": "#12401B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCF5",
                "type": "color"
            },
            "100": {
                "value": "#DFF7E3",
                "type": "color"
            },
            "200": {
                "value": "#BFEDC9",
                "type": "color"
            },
            "300": {
                "value": "#93DCA2",
                "type": "color"
            },
            "400": {
                "value": "#6BC77D",
                "type": "color"
            },
            "500": {
                "value": "#49AC5D",
                "type": "color"
            },
            "600": {
                "value": "#3E844C",
                "type": "color"
            },
            "700": {
                "value": "#315E3A",
                "type": "color"
            },
            "800": {
                "value": "#233E28",
                "type": "color"
            },
            "900": {
                "value": "#17261A",
                "type": "color"
            }
        }
    }
}