What color is #66D87F?

#66D87F is a light, soft green. In RGB it is rgb(102, 216, 127), and in HSL hsl(133, 59%, 62%).

Is #66D87F accessible as text?

On white, #66D87F has a contrast ratio of 1.80:1 (fails WCAG AA for body text); on black it is 11.69:1 (passes). For text placed on #66D87F, use black for the best readability.

What is the closest Tailwind color to #66D87F?

The nearest Tailwind CSS token is emerald-400 (#00D492).

What colors go well with #66D87F?

#66D87F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D765BE. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #66D87F below.

Is #66D87F good for buttons?

#66D87F works well for buttons and highlights, but use black text on #66D87F — white text only reaches 1.80:1, below the 4.5:1 needed for normal-size labels.

Is #66D87F the same as CSS yellowgreen?

No — #66D87F is not the CSS named color yellowgreen, but yellowgreen (#9ACD32) is the closest CSS named color.

#66D87F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #66D87F

Not just a swatch — here's how #66D87F works with other colors. Named schemes with #66D87F in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #66D87F Secondary #4C6C3C Accent #AD6C00 Surface #EEEAD6 Anchor #3C2F20

Emerald Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Coastal Morning Lead · 5 colors

Lead #66D87F Accent #A8C4BA Surface #E2D9BE Secondary #9AA09F Anchor #1A3648

Emerald Green opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #66D87F Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

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

Warm Autumn Interior Dominant · 5 colors

Dominant #66D87F Secondary #AD6C00 Accent #687C4C Surface #F2EDDD Anchor #392B1E

This palette keeps Emerald Green as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #66D87F Secondary #D0F4D5 Support #989286 Ink #17140F

Emerald 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 Emerald Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #66D87F 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 43/100

Neutral

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

Softness 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 21/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 72/100

High

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 26/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 63/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 29/100

Low

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

Surface fit 35/100

Low

Usable as a tinted surface in measured doses.

Print safety 64/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #66D87F

For UI

For branding

For interior

For fashion

People also use #66D87F with

Light Green Turquoise 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 10.3:1. Use

Subtle surface Use #E3F4E7 for cards and hover fills. Tint 80

Avoid beside #65D7A4 — 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 #66D87F at work across the surfaces designers actually ship.

Website / UI

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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: #66D87F;
  --color-base-rgb: 102 216 127;
  --color-base-oklch: oklch(79.4% 0.163 148.7);
  --color-50: #F2FCF5;
  --color-100: #DEF7E3;
  --color-200: #BEEEC9;
  --color-300: #92DEA2;
  --color-400: #68CA7D;
  --color-500: #46AE5D;
  --color-600: #3C864C;
  --color-700: #305F3A;
  --color-800: #223F28;
  --color-900: #17271A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  emerald-green: {
    50: '#F2FCF5',
    100: '#DEF7E3',
    200: '#BEEEC9',
    300: '#92DEA2',
    400: '#68CA7D',
    500: '#46AE5D',
    600: '#3C864C',
    700: '#305F3A',
    800: '#223F28',
    900: '#17271A',
  },
}

$base: #66D87F;
$base-ink: #141310;
$base-50: #F2FCF5;
$base-100: #DEF7E3;
$base-200: #BEEEC9;
$base-300: #92DEA2;
$base-400: #68CA7D;
$base-500: #46AE5D;
$base-600: #3C864C;
$base-700: #305F3A;
$base-800: #223F28;
$base-900: #17271A;
$base-hover: #34C954;
$base-subtle: #D5EFDB;

{
    "color": {
        "base": {
            "value": "#66D87F",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FCF5",
                "type": "color"
            },
            "100": {
                "value": "#DEF7E3",
                "type": "color"
            },
            "200": {
                "value": "#BEEEC9",
                "type": "color"
            },
            "300": {
                "value": "#92DEA2",
                "type": "color"
            },
            "400": {
                "value": "#68CA7D",
                "type": "color"
            },
            "500": {
                "value": "#46AE5D",
                "type": "color"
            },
            "600": {
                "value": "#3C864C",
                "type": "color"
            },
            "700": {
                "value": "#305F3A",
                "type": "color"
            },
            "800": {
                "value": "#223F28",
                "type": "color"
            },
            "900": {
                "value": "#17271A",
                "type": "color"
            }
        }
    }
}

Palettes built on #66D87F

Color Lab

Pairs with #66D87F

UI roles & guardrails

In real applications

Scales

Every model

Export