What color is #245129?

#245129 is a dark green. In RGB it is rgb(36, 81, 41), and in HSL hsl(127, 38%, 23%).

Is #245129 accessible as text?

On white, #245129 has a contrast ratio of 9.19:1 (passes WCAG AA for body text); on black it is 2.28:1 (fails). For text placed on #245129, use white for the best readability.

What is the closest Tailwind color to #245129?

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

What colors go well with #245129?

#245129 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #51244C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #245129 below.

Is #245129 good for buttons?

#245129 works well for buttons and highlights, but use white text on #245129 — black text only reaches 2.28:1, below the 4.5:1 needed for normal-size labels.

Is #245129 the same as CSS darkslategray?

No — #245129 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.

#245129 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #245129

Not just a swatch — here's how #245129 works with other colors. Named schemes with #245129 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #245129 Secondary #4C6B3C Accent #AD6C00 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 #245129 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 #245129 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.

Japanese Sand Base · 5 colors

Base #245129 Surface #EEE9DC Highlight #F5F1E7 Secondary #B6B09F Ink #2B2723

Castleton 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #245129 Secondary #627162 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.

Build a working theme in the generator →

Color Lab

How #245129 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 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 60/100

Moderate

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

Naturalness 98/100

Very high

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

Vintage feel 57/100

Moderate

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

Luxury 65/100

High

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

Brand distinctiveness 22/100

Low

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

UI accent fit 63/100

High

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

Surface fit 34/100

Low

Usable as a tinted surface in measured doses.

Print safety 82/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #245129

For UI

For branding

For interior

For fashion

People also use #245129 with

Dark Olive Green Brunswick Green Tyrian 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 #CDE2CF for cards and hover fills. Tint 80

Avoid beside #245138 — 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 #245129 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: #245129;
  --color-base-rgb: 36 81 41;
  --color-base-oklch: oklch(39.2% 0.083 146.1);
  --color-50: #F4FBF5;
  --color-100: #E2F3E4;
  --color-200: #C7E6CA;
  --color-300: #9FD0A5;
  --color-400: #7AB881;
  --color-500: #599C61;
  --color-600: #49794F;
  --color-700: #38573C;
  --color-800: #273A29;
  --color-900: #19241B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F4FBF5',
    100: '#E2F3E4',
    200: '#C7E6CA',
    300: '#9FD0A5',
    400: '#7AB881',
    500: '#599C61',
    600: '#49794F',
    700: '#38573C',
    800: '#273A29',
    900: '#19241B',
  },
}

$base: #245129;
$base-ink: #FFFFFF;
$base-50: #F4FBF5;
$base-100: #E2F3E4;
$base-200: #C7E6CA;
$base-300: #9FD0A5;
$base-400: #7AB881;
$base-500: #599C61;
$base-600: #49794F;
$base-700: #38573C;
$base-800: #273A29;
$base-900: #19241B;
$base-hover: #1D4121;
$base-subtle: #B3D5B7;

{
    "color": {
        "base": {
            "value": "#245129",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FBF5",
                "type": "color"
            },
            "100": {
                "value": "#E2F3E4",
                "type": "color"
            },
            "200": {
                "value": "#C7E6CA",
                "type": "color"
            },
            "300": {
                "value": "#9FD0A5",
                "type": "color"
            },
            "400": {
                "value": "#7AB881",
                "type": "color"
            },
            "500": {
                "value": "#599C61",
                "type": "color"
            },
            "600": {
                "value": "#49794F",
                "type": "color"
            },
            "700": {
                "value": "#38573C",
                "type": "color"
            },
            "800": {
                "value": "#273A29",
                "type": "color"
            },
            "900": {
                "value": "#19241B",
                "type": "color"
            }
        }
    }
}