What color is #3FE489?

#3FE489 is a medium, vivid teal-green. In RGB it is rgb(63, 228, 137), and in HSL hsl(147, 75%, 57%).

Is #3FE489 accessible as text?

On white, #3FE489 has a contrast ratio of 1.66:1 (fails WCAG AA for body text); on black it is 12.67:1 (passes). For text placed on #3FE489, use black for the best readability.

What is the closest Tailwind color to #3FE489?

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

What colors go well with #3FE489?

#3FE489 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E43F9A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3FE489 below.

Is #3FE489 good for buttons?

#3FE489 works well for buttons and highlights, but use black text on #3FE489 — white text only reaches 1.66:1, below the 4.5:1 needed for normal-size labels.

Is #3FE489 the same as CSS mediumspringgreen?

No — #3FE489 is not the CSS named color mediumspringgreen, but mediumspringgreen (#00FA9A) is the closest CSS named color.

#3FE489 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3FE489

Not just a swatch — here's how #3FE489 works with other colors. Named schemes with #3FE489 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #3FE489 Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Medium Spring Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Tech Product Signal · 5 colors

Signal #3FE489 Surface #13161A Highlight #F4F6F8 Secondary #586771 Accent #83FFB5

Medium 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 Medium Spring Green.

Botanical Studio Lead · 5 colors

Lead #3FE489 Secondary #4B6C3D Accent #AC6C00 Surface #EEEAD6 Anchor #3C2F20

Medium 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 #3FE489 Secondary #CFFEDD Support #989286 Ink #17140F

Medium 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 Medium Spring Green carrying the quiet middle.

Japanese Sand Base · 5 colors

Base #3FE489 Surface #EEEADC Highlight #F5F1E7 Secondary #B6B09F Ink #2A2723

Medium 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.

Build a working theme in the generator →

Color Lab

How #3FE489 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 38/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 52/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 20/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 44/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 22/100

Low

Clean and current — no dusty, aged cast.

Luxury 24/100

Low

Playful and accessible rather than exclusive.

Brand distinctiveness 72/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 23/100

Low

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

Surface fit 37/100

Low

Usable as a tinted surface in measured doses.

Print safety 61/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3FE489

For UI

For branding

For interior

For fashion

People also use #3FE489 with

Light Green Turquoise Mulberry 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 11.2:1. Use

Subtle surface Use #DDF5E8 for cards and hover fills. Tint 80

Avoid beside #3FE4C0 — 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 #3FE489 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: #3FE489;
  --color-base-rgb: 63 228 137;
  --color-base-oklch: oklch(81.5% 0.185 154.0);
  --color-50: #F1FEF7;
  --color-100: #DAFBE9;
  --color-200: #B8F5D3;
  --color-300: #87E8B3;
  --color-400: #5BD793;
  --color-500: #38BC74;
  --color-600: #32905C;
  --color-700: #296644;
  --color-800: #1E422F;
  --color-900: #14291E;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-spring-green: {
    50: '#F1FEF7',
    100: '#DAFBE9',
    200: '#B8F5D3',
    300: '#87E8B3',
    400: '#5BD793',
    500: '#38BC74',
    600: '#32905C',
    700: '#296644',
    800: '#1E422F',
    900: '#14291E',
  },
}

$base: #3FE489;
$base-ink: #141310;
$base-50: #F1FEF7;
$base-100: #DAFBE9;
$base-200: #B8F5D3;
$base-300: #87E8B3;
$base-400: #5BD793;
$base-500: #38BC74;
$base-600: #32905C;
$base-700: #296644;
$base-800: #1E422F;
$base-900: #14291E;
$base-hover: #1DCB6C;
$base-subtle: #CBF1DC;

{
    "color": {
        "base": {
            "value": "#3FE489",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEF7",
                "type": "color"
            },
            "100": {
                "value": "#DAFBE9",
                "type": "color"
            },
            "200": {
                "value": "#B8F5D3",
                "type": "color"
            },
            "300": {
                "value": "#87E8B3",
                "type": "color"
            },
            "400": {
                "value": "#5BD793",
                "type": "color"
            },
            "500": {
                "value": "#38BC74",
                "type": "color"
            },
            "600": {
                "value": "#32905C",
                "type": "color"
            },
            "700": {
                "value": "#296644",
                "type": "color"
            },
            "800": {
                "value": "#1E422F",
                "type": "color"
            },
            "900": {
                "value": "#14291E",
                "type": "color"
            }
        }
    }
}