What color is #66FDCB?

#66FDCB is a light, vivid teal-green. In RGB it is rgb(102, 253, 203), and in HSL hsl(160, 97%, 70%).

Is #66FDCB accessible as text?

On white, #66FDCB has a contrast ratio of 1.27:1 (fails WCAG AA for body text); on black it is 16.48:1 (passes). For text placed on #66FDCB, use black for the best readability.

What is the closest Tailwind color to #66FDCB?

The nearest Tailwind CSS token is green-300 (#7BF1A8).

What colors go well with #66FDCB?

#66FDCB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #FD689A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #66FDCB below.

Is #66FDCB good for buttons?

#66FDCB works well for buttons and highlights, but use black text on #66FDCB — white text only reaches 1.27:1, below the 4.5:1 needed for normal-size labels.

Is #66FDCB the same as CSS aquamarine?

No — #66FDCB is not the CSS named color aquamarine, but aquamarine (#7FFFD4) is the closest CSS named color.

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

Palettes built on #66FDCB

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

Coastal Morning Lead · 5 colors

Lead #66FDCB Accent #A7C4BB Surface #E1D9BE Secondary #9AA0A0 Anchor #1B3549

Aquamarine 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 #66FDCB Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Aquamarine 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 #66FDCB Secondary #AB6D00 Accent #657D4E Surface #F1EDDD Anchor #392B1E

This palette keeps Aquamarine 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 #66FDCB Secondary #486C3F Accent #AB6D00 Surface #EEEAD6 Anchor #3C2F20

Aquamarine 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 #66FDCB Secondary #DAFFF3 Support #989286 Ink #16140F

Aquamarine 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 Aquamarine carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #66FDCB 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 29/100

Cool

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

Softness 64/100

High

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

Depth 10/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 53/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 23/100

Low

Clean and current — no dusty, aged cast.

Luxury 15/100

Very low

Playful and accessible rather than exclusive.

Brand distinctiveness 57/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 9/100

Very low

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

Surface fit 46/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 72/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #66FDCB

For UI

For branding

For interior

For fashion

People also use #66FDCB with

Mint 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 14.6:1. Use

Subtle surface Use #E5FAF3 for cards and hover fills. Tint 80

Avoid beside #68FDFD — 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 #66FDCB 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: #66FDCB;
  --color-base-rgb: 102 253 203;
  --color-base-oklch: oklch(90.0% 0.148 167.9);
  --color-50: #F0FEFA;
  --color-100: #D8FDF1;
  --color-200: #B1FCE3;
  --color-300: #79F6CC;
  --color-400: #49E9B4;
  --color-500: #25D097;
  --color-600: #259D75;
  --color-700: #206F54;
  --color-800: #194838;
  --color-900: #112C23;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  aquamarine: {
    50: '#F0FEFA',
    100: '#D8FDF1',
    200: '#B1FCE3',
    300: '#79F6CC',
    400: '#49E9B4',
    500: '#25D097',
    600: '#259D75',
    700: '#206F54',
    800: '#194838',
    900: '#112C23',
  },
}

$base: #66FDCB;
$base-ink: #141310;
$base-50: #F0FEFA;
$base-100: #D8FDF1;
$base-200: #B1FCE3;
$base-300: #79F6CC;
$base-400: #49E9B4;
$base-500: #25D097;
$base-600: #259D75;
$base-700: #206F54;
$base-800: #194838;
$base-900: #112C23;
$base-hover: #22FCB3;
$base-subtle: #D7F9EE;

{
    "color": {
        "base": {
            "value": "#66FDCB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0FEFA",
                "type": "color"
            },
            "100": {
                "value": "#D8FDF1",
                "type": "color"
            },
            "200": {
                "value": "#B1FCE3",
                "type": "color"
            },
            "300": {
                "value": "#79F6CC",
                "type": "color"
            },
            "400": {
                "value": "#49E9B4",
                "type": "color"
            },
            "500": {
                "value": "#25D097",
                "type": "color"
            },
            "600": {
                "value": "#259D75",
                "type": "color"
            },
            "700": {
                "value": "#206F54",
                "type": "color"
            },
            "800": {
                "value": "#194838",
                "type": "color"
            },
            "900": {
                "value": "#112C23",
                "type": "color"
            }
        }
    }
}

Palettes built on #66FDCB

Color Lab

Pairs with #66FDCB

UI roles & guardrails

In real applications

Scales

Every model

Export