What color is #144D23?

#144D23 is a dark green. In RGB it is rgb(20, 77, 35), and in HSL hsl(136, 59%, 19%).

Is #144D23 accessible as text?

On white, #144D23 has a contrast ratio of 9.93:1 (passes WCAG AA for body text); on black it is 2.12:1 (fails). For text placed on #144D23, use white for the best readability.

What is the closest Tailwind color to #144D23?

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

What colors go well with #144D23?

#144D23 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #4D143E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #144D23 below.

Is #144D23 good for buttons?

#144D23 works well for buttons and highlights, but use white text on #144D23 — black text only reaches 2.12:1, below the 4.5:1 needed for normal-size labels.

Is #144D23 the same as CSS darkslategray?

No — #144D23 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.

#144D23 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #144D23

Not just a swatch — here's how #144D23 works with other colors. Named schemes with #144D23 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #144D23 Secondary #4C6C3C 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 #144D23 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.

Japanese Sand Base · 5 colors

Base #144D23 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.

Luxury Packaging Feature · 5 colors

Feature #144D23 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 #144D23 Secondary #5B6C5D 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 #144D23 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 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

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 56/100

Moderate

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

Luxury 67/100

High

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

Brand distinctiveness 35/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 59/100

Moderate

Workable accent with care around contrast.

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #144D23

For UI

For branding

For interior

For fashion

People also use #144D23 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 9.9:1. Use

Subtle surface Use #C4E7CE for cards and hover fills. Tint 80

Avoid beside #144D36 — 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 #144D23 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: #144D23;
  --color-base-rgb: 20 77 35;
  --color-base-oklch: oklch(37.2% 0.091 148.5);
  --color-50: #F2FCF5;
  --color-100: #DEF7E5;
  --color-200: #BEEECB;
  --color-300: #92DEA6;
  --color-400: #68CA82;
  --color-500: #46AE62;
  --color-600: #3C8650;
  --color-700: #305F3C;
  --color-800: #223F2A;
  --color-900: #17271B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F2FCF5',
    100: '#DEF7E5',
    200: '#BEEECB',
    300: '#92DEA6',
    400: '#68CA82',
    500: '#46AE62',
    600: '#3C8650',
    700: '#305F3C',
    800: '#223F2A',
    900: '#17271B',
  },
}

$base: #144D23;
$base-ink: #FFFFFF;
$base-50: #F2FCF5;
$base-100: #DEF7E5;
$base-200: #BEEECB;
$base-300: #92DEA6;
$base-400: #68CA82;
$base-500: #46AE62;
$base-600: #3C8650;
$base-700: #305F3C;
$base-800: #223F2A;
$base-900: #17271B;
$base-hover: #103E1C;
$base-subtle: #A5DDB4;

{
    "color": {
        "base": {
            "value": "#144D23",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FCF5",
                "type": "color"
            },
            "100": {
                "value": "#DEF7E5",
                "type": "color"
            },
            "200": {
                "value": "#BEEECB",
                "type": "color"
            },
            "300": {
                "value": "#92DEA6",
                "type": "color"
            },
            "400": {
                "value": "#68CA82",
                "type": "color"
            },
            "500": {
                "value": "#46AE62",
                "type": "color"
            },
            "600": {
                "value": "#3C8650",
                "type": "color"
            },
            "700": {
                "value": "#305F3C",
                "type": "color"
            },
            "800": {
                "value": "#223F2A",
                "type": "color"
            },
            "900": {
                "value": "#17271B",
                "type": "color"
            }
        }
    }
}