What color is #0C3B18?

#0C3B18 is a very dark green. In RGB it is rgb(12, 59, 24), and in HSL hsl(135, 66%, 14%).

Is #0C3B18 accessible as text?

On white, #0C3B18 has a contrast ratio of 12.69:1 (passes WCAG AA for body text); on black it is 1.65:1 (fails). For text placed on #0C3B18, use white for the best readability.

What is the closest Tailwind color to #0C3B18?

The nearest Tailwind CSS token is lime-950 (#192E03).

What colors go well with #0C3B18?

#0C3B18 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3B0C2F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0C3B18 below.

Is #0C3B18 good for buttons?

#0C3B18 works well for buttons and highlights, but use white text on #0C3B18 — black text only reaches 1.65:1, below the 4.5:1 needed for normal-size labels.

Is #0C3B18 the same as CSS darkslategray?

No — #0C3B18 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.

#0C3B18 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0C3B18

Not just a swatch — here's how #0C3B18 works with other colors. Named schemes with #0C3B18 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #0C3B18 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 #0C3B18 Secondary #754E1B Surface #E5DBC0 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 #0C3B18 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 #0C3B18 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 #0C3B18 Secondary #4C5A4D 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.

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Color Lab

How #0C3B18 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 29/100

Low

Firm and assertive — carries weight and contrast.

Depth 67/100

High

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

Naturalness 92/100

Very high

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

Vintage feel 47/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 71/100

High

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

Brand distinctiveness 30/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 37/100

Low

Workable accent with care around contrast.

Surface fit 41/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #0C3B18

For UI

For branding

For interior

For fashion

People also use #0C3B18 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 12.7:1. Use

Subtle surface Use #BEE8C9 for cards and hover fills. Tint 80

Avoid beside #0C3B28 — 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 #0C3B18 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: #0C3B18;
  --color-base-rgb: 12 59 24;
  --color-base-oklch: oklch(31.2% 0.078 148.1);
  --color-50: #F2FDF5;
  --color-100: #DCF9E3;
  --color-200: #BBF1C9;
  --color-300: #8DE2A2;
  --color-400: #62D07E;
  --color-500: #40B55D;
  --color-600: #388A4C;
  --color-700: #2D623A;
  --color-800: #214029;
  --color-900: #16281A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  british-racing-green: {
    50: '#F2FDF5',
    100: '#DCF9E3',
    200: '#BBF1C9',
    300: '#8DE2A2',
    400: '#62D07E',
    500: '#40B55D',
    600: '#388A4C',
    700: '#2D623A',
    800: '#214029',
    900: '#16281A',
  },
}

$base: #0C3B18;
$base-ink: #FFFFFF;
$base-50: #F2FDF5;
$base-100: #DCF9E3;
$base-200: #BBF1C9;
$base-300: #8DE2A2;
$base-400: #62D07E;
$base-500: #40B55D;
$base-600: #388A4C;
$base-700: #2D623A;
$base-800: #214029;
$base-900: #16281A;
$base-hover: #0A2F13;
$base-subtle: #9CDEAD;

{
    "color": {
        "base": {
            "value": "#0C3B18",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDF5",
                "type": "color"
            },
            "100": {
                "value": "#DCF9E3",
                "type": "color"
            },
            "200": {
                "value": "#BBF1C9",
                "type": "color"
            },
            "300": {
                "value": "#8DE2A2",
                "type": "color"
            },
            "400": {
                "value": "#62D07E",
                "type": "color"
            },
            "500": {
                "value": "#40B55D",
                "type": "color"
            },
            "600": {
                "value": "#388A4C",
                "type": "color"
            },
            "700": {
                "value": "#2D623A",
                "type": "color"
            },
            "800": {
                "value": "#214029",
                "type": "color"
            },
            "900": {
                "value": "#16281A",
                "type": "color"
            }
        }
    }
}