What color is #125423?

#125423 is a dark green. In RGB it is rgb(18, 84, 35), and in HSL hsl(135, 65%, 20%).

Is #125423 accessible as text?

On white, #125423 has a contrast ratio of 9.06:1 (passes WCAG AA for body text); on black it is 2.32:1 (fails). For text placed on #125423, use white for the best readability.

What is the closest Tailwind color to #125423?

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

What colors go well with #125423?

#125423 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #541244. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #125423 below.

Is #125423 good for buttons?

#125423 works well for buttons and highlights, but use white text on #125423 — black text only reaches 2.32:1, below the 4.5:1 needed for normal-size labels.

Is #125423 the same as CSS darkgreen?

No — #125423 is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#125423 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #125423

Not just a swatch — here's how #125423 works with other colors. Named schemes with #125423 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #125423 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 #125423 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.

Modern Café Dominant · 5 colors

Dominant #125423 Anchor #392B1E 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.

Berry & Cream Lead · 5 colors

Lead #125423 Surface #F0E8D6 Anchor #612029 Accent #E5C3BA Secondary #342B2C

Castleton Green sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #125423 Secondary #5F7361 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 #125423 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 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 55/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 28/100

Low

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

UI accent fit 68/100

High

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

Surface fit 28/100

Low

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

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #125423

For UI

For branding

For interior

For fashion

People also use #125423 with

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 9.1:1. Use

Subtle surface Use #C3E9CD for cards and hover fills. Tint 80

Avoid beside #125439 — 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 #125423 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: #125423;
  --color-base-rgb: 18 84 35;
  --color-base-oklch: oklch(39.3% 0.102 147.8);
  --color-50: #F2FDF5;
  --color-100: #DDF9E4;
  --color-200: #BCF1C9;
  --color-300: #8EE2A3;
  --color-400: #63CF7E;
  --color-500: #41B45E;
  --color-600: #38894D;
  --color-700: #2D623A;
  --color-800: #214029;
  --color-900: #16271A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F2FDF5',
    100: '#DDF9E4',
    200: '#BCF1C9',
    300: '#8EE2A3',
    400: '#63CF7E',
    500: '#41B45E',
    600: '#38894D',
    700: '#2D623A',
    800: '#214029',
    900: '#16271A',
  },
}

$base: #125423;
$base-ink: #FFFFFF;
$base-50: #F2FDF5;
$base-100: #DDF9E4;
$base-200: #BCF1C9;
$base-300: #8EE2A3;
$base-400: #63CF7E;
$base-500: #41B45E;
$base-600: #38894D;
$base-700: #2D623A;
$base-800: #214029;
$base-900: #16271A;
$base-hover: #0E431C;
$base-subtle: #A4E0B3;

{
    "color": {
        "base": {
            "value": "#125423",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDF5",
                "type": "color"
            },
            "100": {
                "value": "#DDF9E4",
                "type": "color"
            },
            "200": {
                "value": "#BCF1C9",
                "type": "color"
            },
            "300": {
                "value": "#8EE2A3",
                "type": "color"
            },
            "400": {
                "value": "#63CF7E",
                "type": "color"
            },
            "500": {
                "value": "#41B45E",
                "type": "color"
            },
            "600": {
                "value": "#38894D",
                "type": "color"
            },
            "700": {
                "value": "#2D623A",
                "type": "color"
            },
            "800": {
                "value": "#214029",
                "type": "color"
            },
            "900": {
                "value": "#16271A",
                "type": "color"
            }
        }
    }
}

Palettes built on #125423

Color Lab

Pairs with #125423

UI roles & guardrails

In real applications

Scales

Every model

Export