What color is #66EDBB?

#66EDBB is a light, vivid teal-green. In RGB it is rgb(102, 237, 187), and in HSL hsl(158, 79%, 66%).

Is #66EDBB accessible as text?

On white, #66EDBB has a contrast ratio of 1.46:1 (fails WCAG AA for body text); on black it is 14.40:1 (passes). For text placed on #66EDBB, use black for the best readability.

What is the closest Tailwind color to #66EDBB?

The nearest Tailwind CSS token is emerald-300 (#5EE9B5).

What colors go well with #66EDBB?

#66EDBB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #ED6496. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #66EDBB below.

Is #66EDBB good for buttons?

#66EDBB works well for buttons and highlights, but use black text on #66EDBB — white text only reaches 1.46:1, below the 4.5:1 needed for normal-size labels.

Is #66EDBB the same as CSS turquoise?

No — #66EDBB is not the CSS named color turquoise, but turquoise (#40E0D0) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

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

Palettes built on #66EDBB

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

Coastal Morning Lead · 5 colors

Lead #66EDBB Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3548

Seafoam 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 #66EDBB Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Seafoam 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 #66EDBB Secondary #AB6D00 Accent #657D4E Surface #F1EDDD Anchor #392B1E

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

Botanical Studio Lead · 5 colors

Lead #66EDBB Secondary #496C3E Accent #AB6D00 Surface #EEEAD6 Anchor #3C2F20

Seafoam 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 #66EDBB Secondary #DCFFF3 Support #989286 Ink #17140F

Seafoam 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 Seafoam Green carrying the quiet middle.

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Color Lab

How #66EDBB 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 32/100

Cool

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

Softness 63/100

High

Soft and easy on the eye — gentle backdrops, calm surfaces.

Depth 15/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 62/100

High

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

Vintage feel 28/100

Low

A faint retro warmth without tipping into sepia.

Luxury 20/100

Low

Playful and accessible rather than exclusive.

Brand distinctiveness 54/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 16/100

Very low

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

Surface fit 44/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #66EDBB

For UI

For branding

For interior

For fashion

People also use #66EDBB with

Light Green Bright Sky Pale Violet Red Platinum Dark Slate Gray

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 12.7:1. Use

Subtle surface Use #E4F8F0 for cards and hover fills. Tint 80

Avoid beside #64EDE8 — 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 #66EDBB 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: #66EDBB;
  --color-base-rgb: 102 237 187;
  --color-base-oklch: oklch(85.8% 0.139 165.9);
  --color-50: #F1FEF9;
  --color-100: #DAFCEF;
  --color-200: #B6F6DF;
  --color-300: #85EBC5;
  --color-400: #58DAAA;
  --color-500: #35C08D;
  --color-600: #30926E;
  --color-700: #286750;
  --color-800: #1D4336;
  --color-900: #142921;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  seafoam-green: {
    50: '#F1FEF9',
    100: '#DAFCEF',
    200: '#B6F6DF',
    300: '#85EBC5',
    400: '#58DAAA',
    500: '#35C08D',
    600: '#30926E',
    700: '#286750',
    800: '#1D4336',
    900: '#142921',
  },
}

$base: #66EDBB;
$base-ink: #141310;
$base-50: #F1FEF9;
$base-100: #DAFCEF;
$base-200: #B6F6DF;
$base-300: #85EBC5;
$base-400: #58DAAA;
$base-500: #35C08D;
$base-600: #30926E;
$base-700: #286750;
$base-800: #1D4336;
$base-900: #142921;
$base-hover: #28E6A0;
$base-subtle: #D5F5E9;

{
    "color": {
        "base": {
            "value": "#66EDBB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEF9",
                "type": "color"
            },
            "100": {
                "value": "#DAFCEF",
                "type": "color"
            },
            "200": {
                "value": "#B6F6DF",
                "type": "color"
            },
            "300": {
                "value": "#85EBC5",
                "type": "color"
            },
            "400": {
                "value": "#58DAAA",
                "type": "color"
            },
            "500": {
                "value": "#35C08D",
                "type": "color"
            },
            "600": {
                "value": "#30926E",
                "type": "color"
            },
            "700": {
                "value": "#286750",
                "type": "color"
            },
            "800": {
                "value": "#1D4336",
                "type": "color"
            },
            "900": {
                "value": "#142921",
                "type": "color"
            }
        }
    }
}

Palettes built on #66EDBB

Color Lab

Pairs with #66EDBB

UI roles & guardrails

In real applications

Scales

Every model

Export