What color is #005104?

#005104 is a very dark, vivid green. In RGB it is rgb(0, 81, 4), and in HSL hsl(123, 100%, 16%).

Is #005104 accessible as text?

On white, #005104 has a contrast ratio of 9.64:1 (passes WCAG AA for body text); on black it is 2.18:1 (fails). For text placed on #005104, use white for the best readability.

What is the closest Tailwind color to #005104?

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

What colors go well with #005104?

#005104 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #52004E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #005104 below.

Is #005104 good for buttons?

#005104 works well for buttons and highlights, but use white text on #005104 — black text only reaches 2.18:1, below the 4.5:1 needed for normal-size labels.

Is #005104 the same as CSS darkgreen?

No — #005104 is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#005104 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #005104

Not just a swatch — here's how #005104 works with other colors. Named schemes with #005104 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #005104 Anchor #141210 Accent #C1A64B Secondary #232C23 Surface #F1EDE3

Castleton 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.

Botanical Studio Lead · 5 colors

Lead #005104 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.

Moody Editorial Color · 5 colors

Color #005104 Anchor #292A2E Secondary #6C6F74 Surface #EBE6DA Accent #002F14

Castleton Green adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Castleton Green.

Vintage Leather Lead · 5 colors

Lead #005104 Secondary #754E1C 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #005104 Secondary #596F58 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 #005104 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 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 63/100

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 47/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 67/100

High

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

Brand distinctiveness 49/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 66/100

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 #005104

For UI

For branding

For interior

For fashion

People also use #005104 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 9.6:1. Use

Subtle surface Use #B5F3B8 for cards and hover fills. Tint 80

Avoid beside #00521F — 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 #005104 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: #005104;
  --color-base-rgb: 0 81 4;
  --color-base-oklch: oklch(37.7% 0.126 143.0);
  --color-50: #F0FEF1;
  --color-100: #D8FDDA;
  --color-200: #B1FCB4;
  --color-300: #77F87E;
  --color-400: #46EC4F;
  --color-500: #22D22B;
  --color-600: #239F29;
  --color-700: #1F7023;
  --color-800: #18481B;
  --color-900: #112C12;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F0FEF1',
    100: '#D8FDDA',
    200: '#B1FCB4',
    300: '#77F87E',
    400: '#46EC4F',
    500: '#22D22B',
    600: '#239F29',
    700: '#1F7023',
    800: '#18481B',
    900: '#112C12',
  },
}

$base: #005104;
$base-ink: #FFFFFF;
$base-50: #F0FEF1;
$base-100: #D8FDDA;
$base-200: #B1FCB4;
$base-300: #77F87E;
$base-400: #46EC4F;
$base-500: #22D22B;
$base-600: #239F29;
$base-700: #1F7023;
$base-800: #18481B;
$base-900: #112C12;
$base-hover: #004103;
$base-subtle: #8EF093;

{
    "color": {
        "base": {
            "value": "#005104",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEF1",
                "type": "color"
            },
            "100": {
                "value": "#D8FDDA",
                "type": "color"
            },
            "200": {
                "value": "#B1FCB4",
                "type": "color"
            },
            "300": {
                "value": "#77F87E",
                "type": "color"
            },
            "400": {
                "value": "#46EC4F",
                "type": "color"
            },
            "500": {
                "value": "#22D22B",
                "type": "color"
            },
            "600": {
                "value": "#239F29",
                "type": "color"
            },
            "700": {
                "value": "#1F7023",
                "type": "color"
            },
            "800": {
                "value": "#18481B",
                "type": "color"
            },
            "900": {
                "value": "#112C12",
                "type": "color"
            }
        }
    }
}

Palettes built on #005104

Color Lab

Pairs with #005104

UI roles & guardrails

In real applications

Scales

Every model

Export