What color is #1E4E2B?

#1E4E2B is a dark green. In RGB it is rgb(30, 78, 43), and in HSL hsl(136, 44%, 21%).

Is #1E4E2B accessible as text?

On white, #1E4E2B has a contrast ratio of 9.63:1 (passes WCAG AA for body text); on black it is 2.18:1 (fails). For text placed on #1E4E2B, use white for the best readability.

What is the closest Tailwind color to #1E4E2B?

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

What colors go well with #1E4E2B?

#1E4E2B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4D1E41. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1E4E2B below.

Is #1E4E2B good for buttons?

#1E4E2B works well for buttons and highlights, but use white text on #1E4E2B — black text only reaches 2.18:1, below the 4.5:1 needed for normal-size labels.

Is #1E4E2B the same as CSS darkslategray?

No — #1E4E2B 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.

#1E4E2B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1E4E2B

Not just a swatch — here's how #1E4E2B works with other colors. Named schemes with #1E4E2B in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #1E4E2B Secondary #4B6C3C 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 #1E4E2B Secondary #754E1B Surface #E5DBC0 Accent #3C5140 Anchor #5B2321

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 #1E4E2B Anchor #382B1E 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 #1E4E2B Surface #EEEADC 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 #1E4E2B Secondary #5E6E61 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 #1E4E2B 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 90/100

Very high

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

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 65/100

High

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

Brand distinctiveness 21/100

Low

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

UI accent fit 58/100

Moderate

Workable accent with care around contrast.

Surface fit 36/100

Low

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #1E4E2B

For UI

For branding

For interior

For fashion

People also use #1E4E2B 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 9.6:1. Use

Subtle surface Use #CAE3D1 for cards and hover fills. Tint 80

Avoid beside #1E4D3A — 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 #1E4E2B 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: #1E4E2B;
  --color-base-rgb: 30 78 43;
  --color-base-oklch: oklch(38.1% 0.079 150.0);
  --color-50: #F4FBF6;
  --color-100: #E1F4E6;
  --color-200: #C4E8CE;
  --color-300: #9BD4AA;
  --color-400: #75BD88;
  --color-500: #54A168;
  --color-600: #467C54;
  --color-700: #36593F;
  --color-800: #263B2C;
  --color-900: #19251C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F4FBF6',
    100: '#E1F4E6',
    200: '#C4E8CE',
    300: '#9BD4AA',
    400: '#75BD88',
    500: '#54A168',
    600: '#467C54',
    700: '#36593F',
    800: '#263B2C',
    900: '#19251C',
  },
}

$base: #1E4E2B;
$base-ink: #FFFFFF;
$base-50: #F4FBF6;
$base-100: #E1F4E6;
$base-200: #C4E8CE;
$base-300: #9BD4AA;
$base-400: #75BD88;
$base-500: #54A168;
$base-600: #467C54;
$base-700: #36593F;
$base-800: #263B2C;
$base-900: #19251C;
$base-hover: #183E22;
$base-subtle: #AED7B9;

{
    "color": {
        "base": {
            "value": "#1E4E2B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FBF6",
                "type": "color"
            },
            "100": {
                "value": "#E1F4E6",
                "type": "color"
            },
            "200": {
                "value": "#C4E8CE",
                "type": "color"
            },
            "300": {
                "value": "#9BD4AA",
                "type": "color"
            },
            "400": {
                "value": "#75BD88",
                "type": "color"
            },
            "500": {
                "value": "#54A168",
                "type": "color"
            },
            "600": {
                "value": "#467C54",
                "type": "color"
            },
            "700": {
                "value": "#36593F",
                "type": "color"
            },
            "800": {
                "value": "#263B2C",
                "type": "color"
            },
            "900": {
                "value": "#19251C",
                "type": "color"
            }
        }
    }
}