What color is #1C4E27?

#1C4E27 is a dark green. In RGB it is rgb(28, 78, 39), and in HSL hsl(133, 47%, 21%).

Is #1C4E27 accessible as text?

On white, #1C4E27 has a contrast ratio of 9.68:1 (passes WCAG AA for body text); on black it is 2.17:1 (fails). For text placed on #1C4E27, use white for the best readability.

What is the closest Tailwind color to #1C4E27?

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

What colors go well with #1C4E27?

#1C4E27 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4F1C44. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1C4E27 below.

Is #1C4E27 good for buttons?

#1C4E27 works well for buttons and highlights, but use white text on #1C4E27 — black text only reaches 2.17:1, below the 4.5:1 needed for normal-size labels.

Is #1C4E27 the same as CSS darkslategray?

No — #1C4E27 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.

#1C4E27 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1C4E27

Not just a swatch — here's how #1C4E27 works with other colors. Named schemes with #1C4E27 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #1C4E27 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 #1C4E27 Secondary #754E1B Surface #E5DBC0 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.

Japanese Sand Base · 5 colors

Base #1C4E27 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.

Luxury Packaging Feature · 5 colors

Feature #1C4E27 Anchor #141210 Accent #C0A64B Secondary #222C23 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #1C4E27 Secondary #5D6E5F 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 #1C4E27 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 46/100

Neutral

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 61/100

High

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

Naturalness 97/100

Very high

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

Vintage feel 56/100

Moderate

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

Luxury 66/100

High

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

Brand distinctiveness 33/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 59/100

Moderate

Workable accent with care around contrast.

Surface fit 35/100

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 #1C4E27

For UI

For branding

For interior

For fashion

People also use #1C4E27 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 9.7:1. Use

Subtle surface Use #C9E4CF for cards and hover fills. Tint 80

Avoid beside #1C4F38 — 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 #1C4E27 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: #1C4E27;
  --color-base-rgb: 28 78 39;
  --color-base-oklch: oklch(37.9% 0.085 148.2);
  --color-50: #F3FBF5;
  --color-100: #E0F5E5;
  --color-200: #C3E9CB;
  --color-300: #99D6A6;
  --color-400: #72C083;
  --color-500: #51A463;
  --color-600: #447E50;
  --color-700: #345A3D;
  --color-800: #253C2A;
  --color-900: #18251B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F3FBF5',
    100: '#E0F5E5',
    200: '#C3E9CB',
    300: '#99D6A6',
    400: '#72C083',
    500: '#51A463',
    600: '#447E50',
    700: '#345A3D',
    800: '#253C2A',
    900: '#18251B',
  },
}

$base: #1C4E27;
$base-ink: #FFFFFF;
$base-50: #F3FBF5;
$base-100: #E0F5E5;
$base-200: #C3E9CB;
$base-300: #99D6A6;
$base-400: #72C083;
$base-500: #51A463;
$base-600: #447E50;
$base-700: #345A3D;
$base-800: #253C2A;
$base-900: #18251B;
$base-hover: #173F1F;
$base-subtle: #ADD8B6;

{
    "color": {
        "base": {
            "value": "#1C4E27",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FBF5",
                "type": "color"
            },
            "100": {
                "value": "#E0F5E5",
                "type": "color"
            },
            "200": {
                "value": "#C3E9CB",
                "type": "color"
            },
            "300": {
                "value": "#99D6A6",
                "type": "color"
            },
            "400": {
                "value": "#72C083",
                "type": "color"
            },
            "500": {
                "value": "#51A463",
                "type": "color"
            },
            "600": {
                "value": "#447E50",
                "type": "color"
            },
            "700": {
                "value": "#345A3D",
                "type": "color"
            },
            "800": {
                "value": "#253C2A",
                "type": "color"
            },
            "900": {
                "value": "#18251B",
                "type": "color"
            }
        }
    }
}