What color is #284C1D?

#284C1D is a dark green. In RGB it is rgb(40, 76, 29), and in HSL hsl(106, 45%, 21%).

Is #284C1D accessible as text?

On white, #284C1D has a contrast ratio of 9.81:1 (passes WCAG AA for body text); on black it is 2.14:1 (fails). For text placed on #284C1D, use white for the best readability.

What is the closest Tailwind color to #284C1D?

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

What colors go well with #284C1D?

#284C1D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #421D4E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #284C1D below.

Is #284C1D good for buttons?

#284C1D works well for buttons and highlights, but use white text on #284C1D — black text only reaches 2.14:1, below the 4.5:1 needed for normal-size labels.

Is #284C1D the same as CSS darkslategray?

No — #284C1D 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.

#284C1D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #284C1D

Not just a swatch — here's how #284C1D works with other colors. Named schemes with #284C1D in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #284C1D 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.

Vintage Leather Lead · 5 colors

Lead #284C1D 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.

Japanese Sand Base · 5 colors

Base #284C1D Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F 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 #284C1D Anchor #141210 Accent #C1A64B Secondary #242B22 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 #284C1D Secondary #606C5C 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 #284C1D 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 50/100

Neutral

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 61/100

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 58/100

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 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #284C1D

For UI

For branding

For interior

For fashion

People also use #284C1D with

Dark Olive Green Brunswick Green Russian Violet 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 9.8:1. Use

Subtle surface Use #D0E4CA for cards and hover fills. Tint 80

Avoid beside #1D4E22 — 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 #284C1D 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: #284C1D;
  --color-base-rgb: 40 76 29;
  --color-base-oklch: oklch(37.7% 0.085 138.9);
  --color-50: #F5FBF4;
  --color-100: #E5F4E1;
  --color-200: #CCE8C4;
  --color-300: #A8D59B;
  --color-400: #85BE74;
  --color-500: #65A253;
  --color-600: #527D45;
  --color-700: #3E5A35;
  --color-800: #2B3B26;
  --color-900: #1B2519;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F5FBF4',
    100: '#E5F4E1',
    200: '#CCE8C4',
    300: '#A8D59B',
    400: '#85BE74',
    500: '#65A253',
    600: '#527D45',
    700: '#3E5A35',
    800: '#2B3B26',
    900: '#1B2519',
  },
}

$base: #284C1D;
$base-ink: #FFFFFF;
$base-50: #F5FBF4;
$base-100: #E5F4E1;
$base-200: #CCE8C4;
$base-300: #A8D59B;
$base-400: #85BE74;
$base-500: #65A253;
$base-600: #527D45;
$base-700: #3E5A35;
$base-800: #2B3B26;
$base-900: #1B2519;
$base-hover: #213E18;
$base-subtle: #B8D7AE;

{
    "color": {
        "base": {
            "value": "#284C1D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5FBF4",
                "type": "color"
            },
            "100": {
                "value": "#E5F4E1",
                "type": "color"
            },
            "200": {
                "value": "#CCE8C4",
                "type": "color"
            },
            "300": {
                "value": "#A8D59B",
                "type": "color"
            },
            "400": {
                "value": "#85BE74",
                "type": "color"
            },
            "500": {
                "value": "#65A253",
                "type": "color"
            },
            "600": {
                "value": "#527D45",
                "type": "color"
            },
            "700": {
                "value": "#3E5A35",
                "type": "color"
            },
            "800": {
                "value": "#2B3B26",
                "type": "color"
            },
            "900": {
                "value": "#1B2519",
                "type": "color"
            }
        }
    }
}