What color is #40F458?

#40F458 is a medium, vivid green. In RGB it is rgb(64, 244, 88), and in HSL hsl(128, 89%, 60%).

Is #40F458 accessible as text?

On white, #40F458 has a contrast ratio of 1.47:1 (fails WCAG AA for body text); on black it is 14.30:1 (passes). For text placed on #40F458, use black for the best readability.

What is the closest Tailwind color to #40F458?

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

What colors go well with #40F458?

#40F458 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #F43EDC. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #40F458 below.

Is #40F458 good for buttons?

#40F458 works well for buttons and highlights, but use black text on #40F458 — white text only reaches 1.47:1, below the 4.5:1 needed for normal-size labels.

Is #40F458 the same as CSS springgreen?

No — #40F458 is not the CSS named color springgreen, but springgreen (#00FF7F) is the closest CSS named color.

#40F458 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #40F458

Not just a swatch — here's how #40F458 works with other colors. Named schemes with #40F458 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #40F458 Surface #13161A Highlight #F4F6F8 Secondary #576770 Accent #87FF90

Spring 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 Spring Green.

Japanese Sand Base · 5 colors

Base #40F458 Surface #EEE9DC Highlight #F5F1E7 Secondary #B6B09F Ink #2B2723

Spring 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 #40F458 Secondary #4C6B3B Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

Spring 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 #40F458 Secondary #D7FFD7 Support #989286 Ink #17140F

Spring 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 Spring Green carrying the quiet middle.

Coastal Morning Lead · 5 colors

Lead #40F458 Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #1A3648

Spring 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 #40F458 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 44/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 17/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 9/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 7/100

Very low

Clean and current — no dusty, aged cast.

Luxury 18/100

Very low

Playful and accessible rather than exclusive.

Brand distinctiveness 94/100

Very high

Bold and ownable — memorable as a primary brand color.

UI accent fit 11/100

Very low

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

Surface fit 41/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 46/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #40F458

For UI

For branding

For interior

For fashion

People also use #40F458 with

Green Yellow Medium Spring Green 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 12.6:1. Use

Subtle surface Use #DEF8E1 for cards and hover fills. Tint 80

Avoid beside #3EF493 — 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 #40F458 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: #40F458;
  --color-base-rgb: 64 244 88;
  --color-base-oklch: oklch(84.8% 0.244 144.8);
  --color-50: #F0FEF2;
  --color-100: #D8FDDD;
  --color-200: #B2FABC;
  --color-300: #7EF18D;
  --color-400: #4FE363;
  --color-500: #2CC941;
  --color-600: #2A9838;
  --color-700: #236B2D;
  --color-800: #1B4621;
  --color-900: #132B16;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  spring-green: {
    50: '#F0FEF2',
    100: '#D8FDDD',
    200: '#B2FABC',
    300: '#7EF18D',
    400: '#4FE363',
    500: '#2CC941',
    600: '#2A9838',
    700: '#236B2D',
    800: '#1B4621',
    900: '#132B16',
  },
}

$base: #40F458;
$base-ink: #141310;
$base-50: #F0FEF2;
$base-100: #D8FDDD;
$base-200: #B2FABC;
$base-300: #7EF18D;
$base-400: #4FE363;
$base-500: #2CC941;
$base-600: #2A9838;
$base-700: #236B2D;
$base-800: #1B4621;
$base-900: #132B16;
$base-hover: #0DE72B;
$base-subtle: #CCF5D1;

{
    "color": {
        "base": {
            "value": "#40F458",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEF2",
                "type": "color"
            },
            "100": {
                "value": "#D8FDDD",
                "type": "color"
            },
            "200": {
                "value": "#B2FABC",
                "type": "color"
            },
            "300": {
                "value": "#7EF18D",
                "type": "color"
            },
            "400": {
                "value": "#4FE363",
                "type": "color"
            },
            "500": {
                "value": "#2CC941",
                "type": "color"
            },
            "600": {
                "value": "#2A9838",
                "type": "color"
            },
            "700": {
                "value": "#236B2D",
                "type": "color"
            },
            "800": {
                "value": "#1B4621",
                "type": "color"
            },
            "900": {
                "value": "#132B16",
                "type": "color"
            }
        }
    }
}

Palettes built on #40F458

Color Lab

Pairs with #40F458

UI roles & guardrails

In real applications

Scales

Every model

Export