What color is #21CA29?

#21CA29 is a medium, vivid green. In RGB it is rgb(33, 202, 41), and in HSL hsl(123, 72%, 46%).

Is #21CA29 accessible as text?

On white, #21CA29 has a contrast ratio of 2.20:1 (fails WCAG AA for body text); on black it is 9.54:1 (passes). For text placed on #21CA29, use black for the best readability.

What is the closest Tailwind color to #21CA29?

The nearest Tailwind CSS token is green-500 (#00C950).

What colors go well with #21CA29?

#21CA29 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CA21C1. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #21CA29 below.

Is #21CA29 good for buttons?

#21CA29 works well for buttons and highlights, but use black text on #21CA29 — white text only reaches 2.20:1, below the 4.5:1 needed for normal-size labels.

Is #21CA29 the same as CSS limegreen?

No — #21CA29 is not the CSS named color limegreen, but limegreen (#32CD32) is the closest CSS named color.

#21CA29 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #21CA29

Not just a swatch — here's how #21CA29 works with other colors. Named schemes with #21CA29 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #21CA29 Surface #13161A Highlight #F4F6F8 Secondary #576770 Accent #6CEF69

Lime 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 Lime Green.

Japanese Sand Base · 5 colors

Base #21CA29 Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F Ink #2B2723

Lime 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 #21CA29 Secondary #4C6B3B Accent #AD6B00 Surface #EEEAD6 Anchor #3C2F20

Lime 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 #21CA29 Secondary #B5E3B2 Support #989286 Ink #17140F

Lime 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 Lime Green carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #21CA29 Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #193648

Lime 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 #21CA29 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

Low

Middle-weight — neither delicate nor heavy.

Depth 30/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 13/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 13/100

Very low

Clean and current — no dusty, aged cast.

Luxury 30/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 90/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 35/100

Low

Workable accent with care around contrast.

Surface fit 29/100

Low

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

Print safety 48/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #21CA29

For UI

For branding

For interior

For fashion

People also use #21CA29 with

Yellow Green Emerald Green Byzantine Platinum Hunter Green

UI roles & guardrails

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

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

Large display Only on dark surfaces. Avoid

Background Pair with #141310 text at 8.4:1. Use

Subtle surface Use #D5F2D7 for cards and hover fills. Tint 80

Avoid beside #21CA62 — 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 #21CA29 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: #21CA29;
  --color-base-rgb: 33 202 41;
  --color-base-oklch: oklch(73.1% 0.233 143.1);
  --color-50: #F1FDF2;
  --color-100: #DBFADD;
  --color-200: #B9F3BC;
  --color-300: #89E68E;
  --color-400: #5DD563;
  --color-500: #3BBA41;
  --color-600: #348E39;
  --color-700: #2A642D;
  --color-800: #1F4221;
  --color-900: #152816;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  lime-green: {
    50: '#F1FDF2',
    100: '#DBFADD',
    200: '#B9F3BC',
    300: '#89E68E',
    400: '#5DD563',
    500: '#3BBA41',
    600: '#348E39',
    700: '#2A642D',
    800: '#1F4221',
    900: '#152816',
  },
}

$base: #21CA29;
$base-ink: #141310;
$base-50: #F1FDF2;
$base-100: #DBFADD;
$base-200: #B9F3BC;
$base-300: #89E68E;
$base-400: #5DD563;
$base-500: #3BBA41;
$base-600: #348E39;
$base-700: #2A642D;
$base-800: #1F4221;
$base-900: #152816;
$base-hover: #1AA121;
$base-subtle: #BFECC1;

{
    "color": {
        "base": {
            "value": "#21CA29",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FDF2",
                "type": "color"
            },
            "100": {
                "value": "#DBFADD",
                "type": "color"
            },
            "200": {
                "value": "#B9F3BC",
                "type": "color"
            },
            "300": {
                "value": "#89E68E",
                "type": "color"
            },
            "400": {
                "value": "#5DD563",
                "type": "color"
            },
            "500": {
                "value": "#3BBA41",
                "type": "color"
            },
            "600": {
                "value": "#348E39",
                "type": "color"
            },
            "700": {
                "value": "#2A642D",
                "type": "color"
            },
            "800": {
                "value": "#1F4221",
                "type": "color"
            },
            "900": {
                "value": "#152816",
                "type": "color"
            }
        }
    }
}