What color is #40F005?

#40F005 is a medium, vivid green. In RGB it is rgb(64, 240, 5), and in HSL hsl(105, 96%, 48%).

Is #40F005 accessible as text?

On white, #40F005 has a contrast ratio of 1.53:1 (fails WCAG AA for body text); on black it is 13.68:1 (passes). For text placed on #40F005, use black for the best readability.

What is the closest Tailwind color to #40F005?

The nearest Tailwind CSS token is lime-400 (#9AE600).

What colors go well with #40F005?

#40F005 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B505F0. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #40F005 below.

Is #40F005 good for buttons?

#40F005 works well for buttons and highlights, but use black text on #40F005 — white text only reaches 1.53:1, below the 4.5:1 needed for normal-size labels.

Is #40F005 the same as CSS lime?

No — #40F005 is not the CSS named color lime, but lime (#00FF00) is the closest CSS named color.

#40F005 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #40F005

Not just a swatch — here's how #40F005 works with other colors. Named schemes with #40F005 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #40F005 Surface #13161A Highlight #F4F6F8 Secondary #576770 Accent #85FF6C

Neon 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 Neon Green.

Japanese Sand Base · 5 colors

Base #40F005 Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F Ink #2B2723

Neon 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 #40F005 Secondary #4D6B3B Accent #AE6B00 Surface #EFEAD6 Anchor #3C2F21

Neon 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 #40F005 Secondary #D4FFCB Support #989286 Ink #17140F

Neon 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 Neon Green carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #40F005 Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #193648

Neon 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 #40F005 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 49/100

Neutral

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

Softness 38/100

Low

Middle-weight — neither delicate nor heavy.

Depth 19/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 3/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 0/100

Very low

Clean and current — no dusty, aged cast.

Luxury 19/100

Very low

Playful and accessible rather than exclusive.

Brand distinctiveness 100/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 10/100

Very low

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

Surface fit 39/100

Low

Usable as a tinted surface in measured doses.

Print safety 40/100

Low

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

Pairs with #40F005

For UI

For branding

For interior

For fashion

People also use #40F005 with

Electric Lime Spring Green Dark 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 12.1:1. Use

Subtle surface Use #DBF7D2 for cards and hover fills. Tint 80

Avoid beside #05F018 — 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 #40F005 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: #40F005;
  --color-base-rgb: 64 240 5;
  --color-base-oklch: oklch(83.4% 0.272 140.8);
  --color-50: #F4FEF0;
  --color-100: #E1FDD8;
  --color-200: #C3FCB1;
  --color-300: #99F67A;
  --color-400: #71E84A;
  --color-500: #50CF26;
  --color-600: #439D25;
  --color-700: #346E21;
  --color-800: #254819;
  --color-900: #182C12;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  neon-green: {
    50: '#F4FEF0',
    100: '#E1FDD8',
    200: '#C3FCB1',
    300: '#99F67A',
    400: '#71E84A',
    500: '#50CF26',
    600: '#439D25',
    700: '#346E21',
    800: '#254819',
    900: '#182C12',
  },
}

$base: #40F005;
$base-ink: #141310;
$base-50: #F4FEF0;
$base-100: #E1FDD8;
$base-200: #C3FCB1;
$base-300: #99F67A;
$base-400: #71E84A;
$base-500: #50CF26;
$base-600: #439D25;
$base-700: #346E21;
$base-800: #254819;
$base-900: #182C12;
$base-hover: #33C004;
$base-subtle: #C9F4BA;

{
    "color": {
        "base": {
            "value": "#40F005",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FEF0",
                "type": "color"
            },
            "100": {
                "value": "#E1FDD8",
                "type": "color"
            },
            "200": {
                "value": "#C3FCB1",
                "type": "color"
            },
            "300": {
                "value": "#99F67A",
                "type": "color"
            },
            "400": {
                "value": "#71E84A",
                "type": "color"
            },
            "500": {
                "value": "#50CF26",
                "type": "color"
            },
            "600": {
                "value": "#439D25",
                "type": "color"
            },
            "700": {
                "value": "#346E21",
                "type": "color"
            },
            "800": {
                "value": "#254819",
                "type": "color"
            },
            "900": {
                "value": "#182C12",
                "type": "color"
            }
        }
    }
}

Palettes built on #40F005

Color Lab

Pairs with #40F005

UI roles & guardrails

In real applications

Scales

Every model

Export