What color is #3FAC11?

#3FAC11 is a dark, vivid green. In RGB it is rgb(63, 172, 17), and in HSL hsl(102, 82%, 37%).

Is #3FAC11 accessible as text?

On white, #3FAC11 has a contrast ratio of 2.95:1 (fails WCAG AA for body text); on black it is 7.12:1 (passes). For text placed on #3FAC11, use black for the best readability.

What is the closest Tailwind color to #3FAC11?

The nearest Tailwind CSS token is lime-600 (#5EA500).

What colors go well with #3FAC11?

#3FAC11 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7D11AC. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3FAC11 below.

Is #3FAC11 good for buttons?

#3FAC11 works well for buttons and highlights, but use black text on #3FAC11 — white text only reaches 2.95:1, below the 4.5:1 needed for normal-size labels.

Is #3FAC11 the same as CSS mediumseagreen?

No — #3FAC11 is not the CSS named color mediumseagreen, but mediumseagreen (#3CB371) is the closest CSS named color.

#3FAC11 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3FAC11

Not just a swatch — here's how #3FAC11 works with other colors. Named schemes with #3FAC11 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #3FAC11 Surface #13161A Highlight #F4F6F8 Secondary #576770 Accent #72D158

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 #3FAC11 Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F 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 #3FAC11 Secondary #4D6B3B Accent #AE6B00 Surface #EFEAD6 Anchor #3D2F21

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 #3FAC11 Secondary #A5C89C 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 #3FAC11 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 #3FAC11 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 51/100

Neutral

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

Softness 40/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 37/100

Low

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

Naturalness 35/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 26/100

Low

A faint retro warmth without tipping into sepia.

Luxury 38/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 78/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 65/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 22/100

Low

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

Print safety 55/100

Moderate

Prints close, with a slight loss of vibrancy.

Pairs with #3FAC11

For UI

For branding

For interior

For fashion

People also use #3FAC11 with

Yellow Green Jade Green Grape Platinum Army Green

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

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 6.3:1. Use

Subtle surface Use #D7F2CC for cards and hover fills. Tint 80

Avoid beside #11AC16 — 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 #3FAC11 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #3FAC11;
  --color-base-rgb: 63 172 17;
  --color-base-oklch: oklch(65.6% 0.203 139.3);
  --color-50: #F5FEF0;
  --color-100: #E4FCD9;
  --color-200: #C9F8B5;
  --color-300: #A2ED83;
  --color-400: #7EDD55;
  --color-500: #5EC332;
  --color-600: #4C942E;
  --color-700: #3A6926;
  --color-800: #29441D;
  --color-900: #1A2A14;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  kelly-green: {
    50: '#F5FEF0',
    100: '#E4FCD9',
    200: '#C9F8B5',
    300: '#A2ED83',
    400: '#7EDD55',
    500: '#5EC332',
    600: '#4C942E',
    700: '#3A6926',
    800: '#29441D',
    900: '#1A2A14',
  },
}

$base: #3FAC11;
$base-ink: #141310;
$base-50: #F5FEF0;
$base-100: #E4FCD9;
$base-200: #C9F8B5;
$base-300: #A2ED83;
$base-400: #7EDD55;
$base-500: #5EC332;
$base-600: #4C942E;
$base-700: #3A6926;
$base-800: #29441D;
$base-900: #1A2A14;
$base-hover: #33890E;
$base-subtle: #C3EDB1;

{
    "color": {
        "base": {
            "value": "#3FAC11",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5FEF0",
                "type": "color"
            },
            "100": {
                "value": "#E4FCD9",
                "type": "color"
            },
            "200": {
                "value": "#C9F8B5",
                "type": "color"
            },
            "300": {
                "value": "#A2ED83",
                "type": "color"
            },
            "400": {
                "value": "#7EDD55",
                "type": "color"
            },
            "500": {
                "value": "#5EC332",
                "type": "color"
            },
            "600": {
                "value": "#4C942E",
                "type": "color"
            },
            "700": {
                "value": "#3A6926",
                "type": "color"
            },
            "800": {
                "value": "#29441D",
                "type": "color"
            },
            "900": {
                "value": "#1A2A14",
                "type": "color"
            }
        }
    }
}