What color is #18451B?

#18451B is a dark green. In RGB it is rgb(24, 69, 27), and in HSL hsl(124, 48%, 18%).

Is #18451B accessible as text?

On white, #18451B has a contrast ratio of 11.02:1 (passes WCAG AA for body text); on black it is 1.91:1 (fails). For text placed on #18451B, use white for the best readability.

What is the closest Tailwind color to #18451B?

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

What colors go well with #18451B?

#18451B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #441841. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #18451B below.

Is #18451B good for buttons?

#18451B works well for buttons and highlights, but use white text on #18451B — black text only reaches 1.91:1, below the 4.5:1 needed for normal-size labels.

Is #18451B the same as CSS darkslategray?

No — #18451B 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.

#18451B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #18451B

Not just a swatch — here's how #18451B works with other colors. Named schemes with #18451B in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #18451B Secondary #4C6B3B Accent #AD6B00 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 #18451B 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 #18451B 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 #18451B Anchor #141210 Accent #C0A64B Secondary #232C23 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 #18451B Secondary #566555 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 #18451B 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 48/100

Neutral

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

Softness 32/100

Low

Firm and assertive — carries weight and contrast.

Depth 64/100

High

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

Naturalness 100/100

Very high

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

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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

Brand distinctiveness 33/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 50/100

Moderate

Workable accent with care around contrast.

Surface fit 36/100

Low

Usable as a tinted surface in measured doses.

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #18451B

For UI

For branding

For interior

For fashion

People also use #18451B with

Hunter Green British Racing Green Russian Violet 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 11.0:1. Use

Subtle surface Use #C7E4C9 for cards and hover fills. Tint 80

Avoid beside #184429 — 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 #18451B 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: #18451B;
  --color-base-rgb: 24 69 27;
  --color-base-oklch: oklch(34.8% 0.085 144.6);
  --color-50: #F3FBF4;
  --color-100: #E0F5E2;
  --color-200: #C3EAC5;
  --color-300: #99D79D;
  --color-400: #71C177;
  --color-500: #50A556;
  --color-600: #437F47;
  --color-700: #345B37;
  --color-800: #253C26;
  --color-900: #182519;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  british-racing-green: {
    50: '#F3FBF4',
    100: '#E0F5E2',
    200: '#C3EAC5',
    300: '#99D79D',
    400: '#71C177',
    500: '#50A556',
    600: '#437F47',
    700: '#345B37',
    800: '#253C26',
    900: '#182519',
  },
}

$base: #18451B;
$base-ink: #FFFFFF;
$base-50: #F3FBF4;
$base-100: #E0F5E2;
$base-200: #C3EAC5;
$base-300: #99D79D;
$base-400: #71C177;
$base-500: #50A556;
$base-600: #437F47;
$base-700: #345B37;
$base-800: #253C26;
$base-900: #182519;
$base-hover: #133615;
$base-subtle: #A9D7AC;

{
    "color": {
        "base": {
            "value": "#18451B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FBF4",
                "type": "color"
            },
            "100": {
                "value": "#E0F5E2",
                "type": "color"
            },
            "200": {
                "value": "#C3EAC5",
                "type": "color"
            },
            "300": {
                "value": "#99D79D",
                "type": "color"
            },
            "400": {
                "value": "#71C177",
                "type": "color"
            },
            "500": {
                "value": "#50A556",
                "type": "color"
            },
            "600": {
                "value": "#437F47",
                "type": "color"
            },
            "700": {
                "value": "#345B37",
                "type": "color"
            },
            "800": {
                "value": "#253C26",
                "type": "color"
            },
            "900": {
                "value": "#182519",
                "type": "color"
            }
        }
    }
}