What color is #2C511A?

#2C511A is a dark green. In RGB it is rgb(44, 81, 26), and in HSL hsl(100, 51%, 21%).

Is #2C511A accessible as text?

On white, #2C511A has a contrast ratio of 9.13:1 (passes WCAG AA for body text); on black it is 2.30:1 (fails). For text placed on #2C511A, use white for the best readability.

What is the closest Tailwind color to #2C511A?

The nearest Tailwind CSS token is lime-900 (#35530E).

What colors go well with #2C511A?

#2C511A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3F1A51. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2C511A below.

Is #2C511A good for buttons?

#2C511A works well for buttons and highlights, but use white text on #2C511A — black text only reaches 2.30:1, below the 4.5:1 needed for normal-size labels.

Is #2C511A the same as CSS darkgreen?

No — #2C511A is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#2C511A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2C511A

Not just a swatch — here's how #2C511A works with other colors. Named schemes with #2C511A in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #2C511A Secondary #4D6B3A Accent #AE6B00 Surface #EFEAD6 Anchor #3D2F21

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 #2C511A Secondary #764D1C Surface #E6DBC0 Accent #3D513F Anchor #5B2323

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 #2C511A Anchor #392B1E Surface #EDE4D0 Accent #889A6C 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 #2C511A Surface #F1E8D6 Anchor #61202A Accent #E6C3BB 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 #2C511A Secondary #64725F Support #999286 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.

Build a working theme in the generator →

Color Lab

How #2C511A 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 52/100

Neutral

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

High

Mid depth — usable as an accent or a muted ground.

Naturalness 100/100

Very high

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

Vintage feel 61/100

High

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 66/100

High

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

Brand distinctiveness 25/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 66/100

High

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

Surface fit 31/100

Low

Usable as a tinted surface in measured doses.

Print safety 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2C511A

For UI

For branding

For interior

For fashion

People also use #2C511A with

Dark Olive Green Castleton Green Russian Violet Platinum Army 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 9.1:1. Use

Subtle surface Use #D2E6C8 for cards and hover fills. Tint 80

Avoid beside #1A511A — 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 #2C511A at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #2C511A;
  --color-base-rgb: 44 81 26;
  --color-base-oklch: oklch(39.4% 0.093 136.9);
  --color-50: #F6FCF3;
  --color-100: #E7F6E0;
  --color-200: #CFEBC1;
  --color-300: #ADD997;
  --color-400: #8BC36F;
  --color-500: #6BA74E;
  --color-600: #568141;
  --color-700: #415C33;
  --color-800: #2C3D24;
  --color-900: #1C2618;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F6FCF3',
    100: '#E7F6E0',
    200: '#CFEBC1',
    300: '#ADD997',
    400: '#8BC36F',
    500: '#6BA74E',
    600: '#568141',
    700: '#415C33',
    800: '#2C3D24',
    900: '#1C2618',
  },
}

$base: #2C511A;
$base-ink: #FFFFFF;
$base-50: #F6FCF3;
$base-100: #E7F6E0;
$base-200: #CFEBC1;
$base-300: #ADD997;
$base-400: #8BC36F;
$base-500: #6BA74E;
$base-600: #568141;
$base-700: #415C33;
$base-800: #2C3D24;
$base-900: #1C2618;
$base-hover: #244115;
$base-subtle: #BBDAAB;

{
    "color": {
        "base": {
            "value": "#2C511A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6FCF3",
                "type": "color"
            },
            "100": {
                "value": "#E7F6E0",
                "type": "color"
            },
            "200": {
                "value": "#CFEBC1",
                "type": "color"
            },
            "300": {
                "value": "#ADD997",
                "type": "color"
            },
            "400": {
                "value": "#8BC36F",
                "type": "color"
            },
            "500": {
                "value": "#6BA74E",
                "type": "color"
            },
            "600": {
                "value": "#568141",
                "type": "color"
            },
            "700": {
                "value": "#415C33",
                "type": "color"
            },
            "800": {
                "value": "#2C3D24",
                "type": "color"
            },
            "900": {
                "value": "#1C2618",
                "type": "color"
            }
        }
    }
}

Palettes built on #2C511A

Color Lab

Pairs with #2C511A

UI roles & guardrails

In real applications

Scales

Every model

Export