What color is #40E42E?

#40E42E is a medium, vivid green. In RGB it is rgb(64, 228, 46), and in HSL hsl(114, 77%, 54%).

Is #40E42E accessible as text?

On white, #40E42E has a contrast ratio of 1.70:1 (fails WCAG AA for body text); on black it is 12.35:1 (passes). For text placed on #40E42E, use black for the best readability.

What is the closest Tailwind color to #40E42E?

The nearest Tailwind CSS token is green-400 (#05DF72).

What colors go well with #40E42E?

#40E42E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D22FE4. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #40E42E below.

Is #40E42E good for buttons?

#40E42E works well for buttons and highlights, but use black text on #40E42E — white text only reaches 1.70:1, below the 4.5:1 needed for normal-size labels.

Is #40E42E the same as CSS limegreen?

No — #40E42E is not the CSS named color limegreen, but limegreen (#32CD32) is the closest CSS named color.

#40E42E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #40E42E

Not just a swatch — here's how #40E42E works with other colors. Named schemes with #40E42E in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #40E42E Surface #13161A Highlight #F4F6F8 Secondary #576770 Accent #82FF74

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

Japanese Sand Base · 5 colors

Base #40E42E Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F Ink #2B2723

Malachite 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 #40E42E Secondary #4D6B3B Accent #AE6B00 Surface #EEEAD6 Anchor #3C2F21

Malachite 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 #40E42E Secondary #CCFCC6 Support #989286 Ink #17140F

Malachite 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 Malachite carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #40E42E Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #193648

Malachite 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 #40E42E 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 48/100

Neutral

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

Softness 40/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 22/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 7/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 6/100

Very low

Clean and current — no dusty, aged cast.

Luxury 22/100

Low

Playful and accessible rather than exclusive.

Brand distinctiveness 97/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 17/100

Very low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 36/100

Low

Usable as a tinted surface in measured doses.

Print safety 44/100

Moderate

Shifts noticeably in CMYK — expect it to dull on press.

Pairs with #40E42E

For UI

For branding

For interior

For fashion

People also use #40E42E with

Pear Medium Spring Green Medium Orchid 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 10.9:1. Use

Subtle surface Use #DDF5DB for cards and hover fills. Tint 80

Avoid beside #2FE45A — 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 #40E42E 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: #40E42E;
  --color-base-rgb: 64 228 46;
  --color-base-oklch: oklch(80.4% 0.251 141.8);
  --color-50: #F2FEF1;
  --color-100: #DDFBDA;
  --color-200: #BDF5B7;
  --color-300: #90E986;
  --color-400: #66D959;
  --color-500: #44BE37;
  --color-600: #3B9131;
  --color-700: #2F6628;
  --color-800: #22431E;
  --color-900: #162914;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  malachite: {
    50: '#F2FEF1',
    100: '#DDFBDA',
    200: '#BDF5B7',
    300: '#90E986',
    400: '#66D959',
    500: '#44BE37',
    600: '#3B9131',
    700: '#2F6628',
    800: '#22431E',
    900: '#162914',
  },
}

$base: #40E42E;
$base-ink: #141310;
$base-50: #F2FEF1;
$base-100: #DDFBDA;
$base-200: #BDF5B7;
$base-300: #90E986;
$base-400: #66D959;
$base-500: #44BE37;
$base-600: #3B9131;
$base-700: #2F6628;
$base-800: #22431E;
$base-900: #162914;
$base-hover: #2AC319;
$base-subtle: #CBF0C7;

{
    "color": {
        "base": {
            "value": "#40E42E",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FEF1",
                "type": "color"
            },
            "100": {
                "value": "#DDFBDA",
                "type": "color"
            },
            "200": {
                "value": "#BDF5B7",
                "type": "color"
            },
            "300": {
                "value": "#90E986",
                "type": "color"
            },
            "400": {
                "value": "#66D959",
                "type": "color"
            },
            "500": {
                "value": "#44BE37",
                "type": "color"
            },
            "600": {
                "value": "#3B9131",
                "type": "color"
            },
            "700": {
                "value": "#2F6628",
                "type": "color"
            },
            "800": {
                "value": "#22431E",
                "type": "color"
            },
            "900": {
                "value": "#162914",
                "type": "color"
            }
        }
    }
}

Palettes built on #40E42E

Color Lab

Pairs with #40E42E

UI roles & guardrails

In real applications

Scales

Every model

Export