What color is #1A5B24?

#1A5B24 is a dark green. In RGB it is rgb(26, 91, 36), and in HSL hsl(129, 56%, 23%).

Is #1A5B24 accessible as text?

On white, #1A5B24 has a contrast ratio of 8.18:1 (passes WCAG AA for body text); on black it is 2.57:1 (fails). For text placed on #1A5B24, use white for the best readability.

What is the closest Tailwind color to #1A5B24?

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

What colors go well with #1A5B24?

#1A5B24 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5B1A52. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1A5B24 below.

Is #1A5B24 good for buttons?

#1A5B24 works well for buttons and highlights, but use white text on #1A5B24 — black text only reaches 2.57:1, below the 4.5:1 needed for normal-size labels.

Is #1A5B24 the same as CSS darkgreen?

No — #1A5B24 is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#1A5B24 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1A5B24

Not just a swatch — here's how #1A5B24 works with other colors. Named schemes with #1A5B24 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #1A5B24 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 #1A5B24 Secondary #754E1B Surface #E6DBC0 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 #1A5B24 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 #1A5B24 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 #1A5B24 Secondary #667A66 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 #1A5B24 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 47/100

Neutral

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 58/100

Moderate

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 56/100

Moderate

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

Luxury 65/100

High

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

Brand distinctiveness 29/100

Low

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

UI accent fit 77/100

High

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

Surface fit 25/100

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 #1A5B24

For UI

For branding

For interior

For fashion

People also use #1A5B24 with

Avocado Castleton 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 8.2:1. Use

Subtle surface Use #C8E8CD for cards and hover fills. Tint 80

Avoid beside #1A5B3A — 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 #1A5B24 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: #1A5B24;
  --color-base-rgb: 26 91 36;
  --color-base-oklch: oklch(41.7% 0.108 145.9);
  --color-50: #F3FCF4;
  --color-100: #DFF7E2;
  --color-200: #BFEDC6;
  --color-300: #93DC9E;
  --color-400: #6BC779;
  --color-500: #49AC58;
  --color-600: #3E8449;
  --color-700: #315E38;
  --color-800: #233E27;
  --color-900: #172619;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F3FCF4',
    100: '#DFF7E2',
    200: '#BFEDC6',
    300: '#93DC9E',
    400: '#6BC779',
    500: '#49AC58',
    600: '#3E8449',
    700: '#315E38',
    800: '#233E27',
    900: '#172619',
  },
}

$base: #1A5B24;
$base-ink: #FFFFFF;
$base-50: #F3FCF4;
$base-100: #DFF7E2;
$base-200: #BFEDC6;
$base-300: #93DC9E;
$base-400: #6BC779;
$base-500: #49AC58;
$base-600: #3E8449;
$base-700: #315E38;
$base-800: #233E27;
$base-900: #172619;
$base-hover: #15491D;
$base-subtle: #ABDDB3;

{
    "color": {
        "base": {
            "value": "#1A5B24",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FCF4",
                "type": "color"
            },
            "100": {
                "value": "#DFF7E2",
                "type": "color"
            },
            "200": {
                "value": "#BFEDC6",
                "type": "color"
            },
            "300": {
                "value": "#93DC9E",
                "type": "color"
            },
            "400": {
                "value": "#6BC779",
                "type": "color"
            },
            "500": {
                "value": "#49AC58",
                "type": "color"
            },
            "600": {
                "value": "#3E8449",
                "type": "color"
            },
            "700": {
                "value": "#315E38",
                "type": "color"
            },
            "800": {
                "value": "#233E27",
                "type": "color"
            },
            "900": {
                "value": "#172619",
                "type": "color"
            }
        }
    }
}

Palettes built on #1A5B24

Color Lab

Pairs with #1A5B24

UI roles & guardrails

In real applications

Scales

Every model

Export