What color is #21BC36?

#21BC36 is a medium, vivid green. In RGB it is rgb(33, 188, 54), and in HSL hsl(128, 70%, 43%).

Is #21BC36 accessible as text?

On white, #21BC36 has a contrast ratio of 2.53:1 (fails WCAG AA for body text); on black it is 8.31:1 (passes). For text placed on #21BC36, use black for the best readability.

What is the closest Tailwind color to #21BC36?

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

What colors go well with #21BC36?

#21BC36 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BA21A6. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #21BC36 below.

Is #21BC36 good for buttons?

#21BC36 works well for buttons and highlights, but use black text on #21BC36 — white text only reaches 2.53:1, below the 4.5:1 needed for normal-size labels.

Is #21BC36 the same as CSS limegreen?

No — #21BC36 is not the CSS named color limegreen, but limegreen (#32CD32) is the closest CSS named color.

#21BC36 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #21BC36

Not just a swatch — here's how #21BC36 works with other colors. Named schemes with #21BC36 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #21BC36 Surface #13161A Highlight #F4F6F8 Secondary #576770 Accent #68E16D

Kelly 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 Kelly Green.

Japanese Sand Base · 5 colors

Base #21BC36 Surface #EEE9DC Highlight #F5F1E7 Secondary #B6B09F Ink #2B2723

Kelly 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 #21BC36 Secondary #4C6B3B Accent #AD6B00 Surface #EEEAD6 Anchor #3C2F20

Kelly 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 #21BC36 Secondary #ACD6AB Support #989286 Ink #17140F

Kelly 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 Kelly Green carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #21BC36 Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #193648

Kelly 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 #21BC36 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 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 33/100

Low

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

Naturalness 26/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 21/100

Low

Clean and current — no dusty, aged cast.

Luxury 34/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 82/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 51/100

Moderate

Workable accent with care around contrast.

Surface fit 26/100

Low

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

Print safety 53/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #21BC36

For UI

For branding

For interior

For fashion

People also use #21BC36 with

Malachite Medium Sea 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 7.4:1. Use

Subtle surface Use #D3F1D7 for cards and hover fills. Tint 80

Avoid beside #21BA69 — 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 #21BC36 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: #21BC36;
  --color-base-rgb: 33 188 54;
  --color-base-oklch: oklch(69.4% 0.212 144.3);
  --color-50: #F1FDF3;
  --color-100: #DBFAE0;
  --color-200: #BAF3C1;
  --color-300: #8AE596;
  --color-400: #5FD36F;
  --color-500: #3DB84D;
  --color-600: #358C41;
  --color-700: #2B6433;
  --color-800: #204124;
  --color-900: #152818;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  kelly-green: {
    50: '#F1FDF3',
    100: '#DBFAE0',
    200: '#BAF3C1',
    300: '#8AE596',
    400: '#5FD36F',
    500: '#3DB84D',
    600: '#358C41',
    700: '#2B6433',
    800: '#204124',
    900: '#152818',
  },
}

$base: #21BC36;
$base-ink: #141310;
$base-50: #F1FDF3;
$base-100: #DBFAE0;
$base-200: #BAF3C1;
$base-300: #8AE596;
$base-400: #5FD36F;
$base-500: #3DB84D;
$base-600: #358C41;
$base-700: #2B6433;
$base-800: #204124;
$base-900: #152818;
$base-hover: #1A952B;
$base-subtle: #BCEBC2;

{
    "color": {
        "base": {
            "value": "#21BC36",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FDF3",
                "type": "color"
            },
            "100": {
                "value": "#DBFAE0",
                "type": "color"
            },
            "200": {
                "value": "#BAF3C1",
                "type": "color"
            },
            "300": {
                "value": "#8AE596",
                "type": "color"
            },
            "400": {
                "value": "#5FD36F",
                "type": "color"
            },
            "500": {
                "value": "#3DB84D",
                "type": "color"
            },
            "600": {
                "value": "#358C41",
                "type": "color"
            },
            "700": {
                "value": "#2B6433",
                "type": "color"
            },
            "800": {
                "value": "#204124",
                "type": "color"
            },
            "900": {
                "value": "#152818",
                "type": "color"
            }
        }
    }
}

Palettes built on #21BC36

Color Lab

Pairs with #21BC36

UI roles & guardrails

In real applications

Scales

Every model

Export