What color is #04510E?

#04510E is a very dark, vivid green. In RGB it is rgb(4, 81, 14), and in HSL hsl(128, 91%, 17%).

Is #04510E accessible as text?

On white, #04510E has a contrast ratio of 9.60:1 (passes WCAG AA for body text); on black it is 2.19:1 (fails). For text placed on #04510E, use white for the best readability.

What is the closest Tailwind color to #04510E?

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

What colors go well with #04510E?

#04510E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #530448. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #04510E below.

Is #04510E good for buttons?

#04510E works well for buttons and highlights, but use white text on #04510E — black text only reaches 2.19:1, below the 4.5:1 needed for normal-size labels.

Is #04510E the same as CSS darkgreen?

No — #04510E is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#04510E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #04510E

Not just a swatch — here's how #04510E works with other colors. Named schemes with #04510E in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #04510E Anchor #141210 Accent #C0A64B 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 #04510E 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 #04510E Anchor #292A2E Secondary #6C6F74 Surface #EBE6DA Accent #002F16

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 #04510E 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #04510E Secondary #5A6F59 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 #04510E 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 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 49/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

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

Brand distinctiveness 46/100

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 24/100

Low

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

Print safety 74/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #04510E

For UI

For branding

For interior

For fashion

People also use #04510E 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 #B9F0C0 for cards and hover fills. Tint 80

Avoid beside #045329 — 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 #04510E 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: #04510E;
  --color-base-rgb: 4 81 14;
  --color-base-oklch: oklch(37.9% 0.120 144.0);
  --color-50: #F0FEF2;
  --color-100: #D8FDDD;
  --color-200: #B1FBBB;
  --color-300: #7DF28D;
  --color-400: #4EE462;
  --color-500: #2ACB40;
  --color-600: #289A37;
  --color-700: #236C2C;
  --color-800: #1B4620;
  --color-900: #122B16;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F0FEF2',
    100: '#D8FDDD',
    200: '#B1FBBB',
    300: '#7DF28D',
    400: '#4EE462',
    500: '#2ACB40',
    600: '#289A37',
    700: '#236C2C',
    800: '#1B4620',
    900: '#122B16',
  },
}

$base: #04510E;
$base-ink: #FFFFFF;
$base-50: #F0FEF2;
$base-100: #D8FDDD;
$base-200: #B1FBBB;
$base-300: #7DF28D;
$base-400: #4EE462;
$base-500: #2ACB40;
$base-600: #289A37;
$base-700: #236C2C;
$base-800: #1B4620;
$base-900: #122B16;
$base-hover: #03420C;
$base-subtle: #94EB9F;

{
    "color": {
        "base": {
            "value": "#04510E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEF2",
                "type": "color"
            },
            "100": {
                "value": "#D8FDDD",
                "type": "color"
            },
            "200": {
                "value": "#B1FBBB",
                "type": "color"
            },
            "300": {
                "value": "#7DF28D",
                "type": "color"
            },
            "400": {
                "value": "#4EE462",
                "type": "color"
            },
            "500": {
                "value": "#2ACB40",
                "type": "color"
            },
            "600": {
                "value": "#289A37",
                "type": "color"
            },
            "700": {
                "value": "#236C2C",
                "type": "color"
            },
            "800": {
                "value": "#1B4620",
                "type": "color"
            },
            "900": {
                "value": "#122B16",
                "type": "color"
            }
        }
    }
}

Palettes built on #04510E

Color Lab

Pairs with #04510E

UI roles & guardrails

In real applications

Scales

Every model

Export