What color is #21A62A?

#21A62A is a dark green. In RGB it is rgb(33, 166, 42), and in HSL hsl(124, 67%, 39%).

Is #21A62A accessible as text?

On white, #21A62A has a contrast ratio of 3.20:1 (fails WCAG AA for body text); on black it is 6.55:1 (passes). For text placed on #21A62A, use black for the best readability.

What is the closest Tailwind color to #21A62A?

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

What colors go well with #21A62A?

#21A62A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A6219D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #21A62A below.

Is #21A62A good for buttons?

#21A62A works well for buttons and highlights, but use black text on #21A62A — white text only reaches 3.20:1, below the 4.5:1 needed for normal-size labels.

Is #21A62A the same as CSS mediumseagreen?

No — #21A62A is not the CSS named color mediumseagreen, but mediumseagreen (#3CB371) is the closest CSS named color.

#21A62A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #21A62A

Not just a swatch — here's how #21A62A works with other colors. Named schemes with #21A62A in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #21A62A Surface #13161A Highlight #F4F6F8 Secondary #576770 Accent #60CA60

Shamrock Green is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Shamrock Green.

Japanese Sand Base · 5 colors

Base #21A62A 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.

Botanical Studio Lead · 5 colors

Lead #21A62A Secondary #4C6B3B Accent #AD6B00 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #21A62A Secondary #9CC19A 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.

Coastal Morning Lead · 5 colors

Lead #21A62A Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #193648

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

Build a working theme in the generator →

Color Lab

How #21A62A 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 40/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 39/100

Low

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

Naturalness 41/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 40/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 75/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 74/100

High

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

Surface fit 20/100

Low

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

Print safety 57/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #21A62A

For UI

For branding

For interior

For fashion

People also use #21A62A with

Peridot Jade Green Byzantine 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 5.8:1. Use

Subtle surface Use #D1EFD3 for cards and hover fills. Tint 80

Avoid beside #21A656 — 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 #21A62A 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: #21A62A;
  --color-base-rgb: 33 166 42;
  --color-base-oklch: oklch(63.3% 0.195 143.5);
  --color-50: #F2FDF2;
  --color-100: #DCF9DE;
  --color-200: #BBF1BF;
  --color-300: #8CE392;
  --color-400: #62D069;
  --color-500: #3FB547;
  --color-600: #378B3D;
  --color-700: #2C6230;
  --color-800: #204122;
  --color-900: #162817;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  shamrock-green: {
    50: '#F2FDF2',
    100: '#DCF9DE',
    200: '#BBF1BF',
    300: '#8CE392',
    400: '#62D069',
    500: '#3FB547',
    600: '#378B3D',
    700: '#2C6230',
    800: '#204122',
    900: '#162817',
  },
}

$base: #21A62A;
$base-ink: #141310;
$base-50: #F2FDF2;
$base-100: #DCF9DE;
$base-200: #BBF1BF;
$base-300: #8CE392;
$base-400: #62D069;
$base-500: #3FB547;
$base-600: #378B3D;
$base-700: #2C6230;
$base-800: #204122;
$base-900: #162817;
$base-hover: #1A8521;
$base-subtle: #B9E8BC;

{
    "color": {
        "base": {
            "value": "#21A62A",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FDF2",
                "type": "color"
            },
            "100": {
                "value": "#DCF9DE",
                "type": "color"
            },
            "200": {
                "value": "#BBF1BF",
                "type": "color"
            },
            "300": {
                "value": "#8CE392",
                "type": "color"
            },
            "400": {
                "value": "#62D069",
                "type": "color"
            },
            "500": {
                "value": "#3FB547",
                "type": "color"
            },
            "600": {
                "value": "#378B3D",
                "type": "color"
            },
            "700": {
                "value": "#2C6230",
                "type": "color"
            },
            "800": {
                "value": "#204122",
                "type": "color"
            },
            "900": {
                "value": "#162817",
                "type": "color"
            }
        }
    }
}

Palettes built on #21A62A

Color Lab

Pairs with #21A62A

UI roles & guardrails

In real applications

Scales

Every model

Export