What color is #1F4E09?

#1F4E09 is a very dark, vivid green. In RGB it is rgb(31, 78, 9), and in HSL hsl(101, 79%, 17%).

Is #1F4E09 accessible as text?

On white, #1F4E09 has a contrast ratio of 9.76:1 (passes WCAG AA for body text); on black it is 2.15:1 (fails). For text placed on #1F4E09, use white for the best readability.

What is the closest Tailwind color to #1F4E09?

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

What colors go well with #1F4E09?

#1F4E09 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #38094E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1F4E09 below.

Is #1F4E09 good for buttons?

#1F4E09 works well for buttons and highlights, but use white text on #1F4E09 — black text only reaches 2.15:1, below the 4.5:1 needed for normal-size labels.

Is #1F4E09 the same as CSS darkgreen?

No — #1F4E09 is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#1F4E09 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1F4E09

Not just a swatch — here's how #1F4E09 works with other colors. Named schemes with #1F4E09 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #1F4E09 Anchor #141210 Accent #C1A64B Secondary #242B22 Surface #F2EDE3

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 #1F4E09 Secondary #4D6B3B 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.

Moody Editorial Color · 5 colors

Color #1F4E09 Anchor #292A2E Secondary #6C6F74 Surface #EBE6DA Accent #002D12

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 #1F4E09 Secondary #754D1C 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #1F4E09 Secondary #5D6D58 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 #1F4E09 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 51/100

Neutral

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

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

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 53/100

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 42/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 64/100

High

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

Surface fit 27/100

Low

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

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #1F4E09

For UI

For branding

For interior

For fashion

People also use #1F4E09 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 9.8:1. Use

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

Avoid beside #094E0A — 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 #1F4E09 at work across the surfaces designers actually ship.

Website / UI

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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: #1F4E09;
  --color-base-rgb: 31 78 9;
  --color-base-oklch: oklch(37.6% 0.109 138.2);
  --color-50: #F5FEF1;
  --color-100: #E4FCDA;
  --color-200: #CAF6B6;
  --color-300: #A5EB85;
  --color-400: #81DA58;
  --color-500: #61C035;
  --color-600: #4F9230;
  --color-700: #3C6728;
  --color-800: #29431D;
  --color-900: #1B2914;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F5FEF1',
    100: '#E4FCDA',
    200: '#CAF6B6',
    300: '#A5EB85',
    400: '#81DA58',
    500: '#61C035',
    600: '#4F9230',
    700: '#3C6728',
    800: '#29431D',
    900: '#1B2914',
  },
}

$base: #1F4E09;
$base-ink: #FFFFFF;
$base-50: #F5FEF1;
$base-100: #E4FCDA;
$base-200: #CAF6B6;
$base-300: #A5EB85;
$base-400: #81DA58;
$base-500: #61C035;
$base-600: #4F9230;
$base-700: #3C6728;
$base-800: #29431D;
$base-900: #1B2914;
$base-hover: #193E07;
$base-subtle: #B2E699;

{
    "color": {
        "base": {
            "value": "#1F4E09",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5FEF1",
                "type": "color"
            },
            "100": {
                "value": "#E4FCDA",
                "type": "color"
            },
            "200": {
                "value": "#CAF6B6",
                "type": "color"
            },
            "300": {
                "value": "#A5EB85",
                "type": "color"
            },
            "400": {
                "value": "#81DA58",
                "type": "color"
            },
            "500": {
                "value": "#61C035",
                "type": "color"
            },
            "600": {
                "value": "#4F9230",
                "type": "color"
            },
            "700": {
                "value": "#3C6728",
                "type": "color"
            },
            "800": {
                "value": "#29431D",
                "type": "color"
            },
            "900": {
                "value": "#1B2914",
                "type": "color"
            }
        }
    }
}

Palettes built on #1F4E09

Color Lab

Pairs with #1F4E09

UI roles & guardrails

In real applications

Scales

Every model

Export