What color is #18A339?

#18A339 is a dark, vivid green. In RGB it is rgb(24, 163, 57), and in HSL hsl(134, 74%, 37%).

Is #18A339 accessible as text?

On white, #18A339 has a contrast ratio of 3.31:1 (fails WCAG AA for body text); on black it is 6.34:1 (passes). For text placed on #18A339, use black for the best readability.

What is the closest Tailwind color to #18A339?

The nearest Tailwind CSS token is green-600 (#00A63E).

What colors go well with #18A339?

#18A339 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A41984. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #18A339 below.

Is #18A339 good for buttons?

#18A339 works well for buttons and highlights, but use black text on #18A339 — white text only reaches 3.31:1, below the 4.5:1 needed for normal-size labels.

Is #18A339 the same as CSS forestgreen?

No — #18A339 is not the CSS named color forestgreen, but forestgreen (#228B22) is the closest CSS named color.

#18A339 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #18A339

Not just a swatch — here's how #18A339 works with other colors. Named schemes with #18A339 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #18A339 Secondary #4C6B3C Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

Shamrock Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Coastal Morning Lead · 5 colors

Lead #18A339 Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #1A3648

Shamrock Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Japanese Sand Base · 5 colors

Base #18A339 Surface #EEE9DC Highlight #F5F1E7 Secondary #B6B09F Ink #2B2723

Shamrock 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.

Warm Autumn Interior Dominant · 5 colors

Dominant #18A339 Secondary #AD6C00 Accent #687C4C Surface #F2EDDD Anchor #3A2B1E

This palette keeps Shamrock Green as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #18A339 Secondary #99BE9B Support #989286 Ink #17140F

Shamrock 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 Shamrock Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #18A339 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 45/100

Neutral

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 40/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 52/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 71/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 79/100

High

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

Surface fit 19/100

Very low

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

Print safety 60/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #18A339

For UI

For branding

For interior

For fashion

People also use #18A339 with

Lime Green Persian Green Fandango Platinum Hunter Green

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

Body text Do not use for body copy on light surfaces. Avoid

Large display Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 5.6:1. Use

Subtle surface Use #CEF0D6 for cards and hover fills. Tint 80

Avoid beside #19A468 — 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 #18A339 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: #18A339;
  --color-base-rgb: 24 163 57;
  --color-base-oklch: oklch(62.5% 0.183 146.0);
  --color-50: #F1FEF4;
  --color-100: #DBFBE2;
  --color-200: #B8F4C6;
  --color-300: #88E79E;
  --color-400: #5CD678;
  --color-500: #39BC58;
  --color-600: #338F48;
  --color-700: #2A6537;
  --color-800: #1F4227;
  --color-900: #152919;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  shamrock-green: {
    50: '#F1FEF4',
    100: '#DBFBE2',
    200: '#B8F4C6',
    300: '#88E79E',
    400: '#5CD678',
    500: '#39BC58',
    600: '#338F48',
    700: '#2A6537',
    800: '#1F4227',
    900: '#152919',
  },
}

$base: #18A339;
$base-ink: #141310;
$base-50: #F1FEF4;
$base-100: #DBFBE2;
$base-200: #B8F4C6;
$base-300: #88E79E;
$base-400: #5CD678;
$base-500: #39BC58;
$base-600: #338F48;
$base-700: #2A6537;
$base-800: #1F4227;
$base-900: #152919;
$base-hover: #14832E;
$base-subtle: #B4EAC0;

{
    "color": {
        "base": {
            "value": "#18A339",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEF4",
                "type": "color"
            },
            "100": {
                "value": "#DBFBE2",
                "type": "color"
            },
            "200": {
                "value": "#B8F4C6",
                "type": "color"
            },
            "300": {
                "value": "#88E79E",
                "type": "color"
            },
            "400": {
                "value": "#5CD678",
                "type": "color"
            },
            "500": {
                "value": "#39BC58",
                "type": "color"
            },
            "600": {
                "value": "#338F48",
                "type": "color"
            },
            "700": {
                "value": "#2A6537",
                "type": "color"
            },
            "800": {
                "value": "#1F4227",
                "type": "color"
            },
            "900": {
                "value": "#152919",
                "type": "color"
            }
        }
    }
}

Palettes built on #18A339

Color Lab

Pairs with #18A339

UI roles & guardrails

In real applications

Scales

Every model

Export