What color is #00540D?

#00540D is a very dark, vivid green. In RGB it is rgb(0, 84, 13), and in HSL hsl(129, 100%, 16%).

Is #00540D accessible as text?

On white, #00540D has a contrast ratio of 9.24:1 (passes WCAG AA for body text); on black it is 2.27:1 (fails). For text placed on #00540D, use white for the best readability.

What is the closest Tailwind color to #00540D?

The nearest Tailwind CSS token is green-900 (#0D542B).

What colors go well with #00540D?

#00540D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #520045. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #00540D below.

Is #00540D good for buttons?

#00540D works well for buttons and highlights, but use white text on #00540D — black text only reaches 2.27:1, below the 4.5:1 needed for normal-size labels.

Is #00540D the same as CSS darkgreen?

No — #00540D is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#00540D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #00540D

Not just a swatch — here's how #00540D works with other colors. Named schemes with #00540D in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #00540D Secondary #4C6B3B Accent #AD6B00 Surface #EEEAD6 Anchor #3C2F20

Castleton 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 #00540D Secondary #754E1B Surface #E6DBC0 Accent #3C5140 Anchor #5B2322

Castleton 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.

Modern Café Dominant · 5 colors

Dominant #00540D Anchor #392B1E Surface #EDE4D0 Accent #879B6D Secondary #3A3833

Castleton Green anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Berry & Cream Lead · 5 colors

Lead #00540D Surface #F0E8D6 Anchor #612029 Accent #E5C3BA Secondary #342B2C

Castleton Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #00540D Secondary #5C725B Support #989286 Ink #17140F

Castleton 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 Castleton Green carrying the quiet middle.

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Color Lab

How #00540D 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 32/100

Low

Firm and assertive — carries weight and contrast.

Depth 62/100

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 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 70/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 22/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #00540D

For UI

For branding

For interior

For fashion

People also use #00540D with

Green Castleton 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 9.2:1. Use

Subtle surface Use #B5F3BF for cards and hover fills. Tint 80

Avoid beside #005227 — 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 #00540D 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: #00540D;
  --color-base-rgb: 0 84 13;
  --color-base-oklch: oklch(38.7% 0.125 144.2);
  --color-50: #F0FEF2;
  --color-100: #D8FDDD;
  --color-200: #B1FCBC;
  --color-300: #77F88A;
  --color-400: #46EC5F;
  --color-500: #22D23D;
  --color-600: #239F35;
  --color-700: #1F702B;
  --color-800: #184820;
  --color-900: #112C15;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F0FEF2',
    100: '#D8FDDD',
    200: '#B1FCBC',
    300: '#77F88A',
    400: '#46EC5F',
    500: '#22D23D',
    600: '#239F35',
    700: '#1F702B',
    800: '#184820',
    900: '#112C15',
  },
}

$base: #00540D;
$base-ink: #FFFFFF;
$base-50: #F0FEF2;
$base-100: #D8FDDD;
$base-200: #B1FCBC;
$base-300: #77F88A;
$base-400: #46EC5F;
$base-500: #22D23D;
$base-600: #239F35;
$base-700: #1F702B;
$base-800: #184820;
$base-900: #112C15;
$base-hover: #00410A;
$base-subtle: #8EF09D;

{
    "color": {
        "base": {
            "value": "#00540D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEF2",
                "type": "color"
            },
            "100": {
                "value": "#D8FDDD",
                "type": "color"
            },
            "200": {
                "value": "#B1FCBC",
                "type": "color"
            },
            "300": {
                "value": "#77F88A",
                "type": "color"
            },
            "400": {
                "value": "#46EC5F",
                "type": "color"
            },
            "500": {
                "value": "#22D23D",
                "type": "color"
            },
            "600": {
                "value": "#239F35",
                "type": "color"
            },
            "700": {
                "value": "#1F702B",
                "type": "color"
            },
            "800": {
                "value": "#184820",
                "type": "color"
            },
            "900": {
                "value": "#112C15",
                "type": "color"
            }
        }
    }
}

Palettes built on #00540D

Color Lab

Pairs with #00540D

UI roles & guardrails

In real applications

Scales

Every model

Export