What color is #66DAAE?

#66DAAE is a light, soft teal-green. In RGB it is rgb(102, 218, 174), and in HSL hsl(157, 61%, 63%).

Is #66DAAE accessible as text?

On white, #66DAAE has a contrast ratio of 1.72:1 (fails WCAG AA for body text); on black it is 12.20:1 (passes). For text placed on #66DAAE, use black for the best readability.

What is the closest Tailwind color to #66DAAE?

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

What colors go well with #66DAAE?

#66DAAE pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #DA6793. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #66DAAE below.

Is #66DAAE good for buttons?

#66DAAE works well for buttons and highlights, but use black text on #66DAAE — white text only reaches 1.72:1, below the 4.5:1 needed for normal-size labels.

Is #66DAAE the same as CSS mediumaquamarine?

No — #66DAAE is not the CSS named color mediumaquamarine, but mediumaquamarine (#66CDAA) is the closest CSS named color.

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

Palettes built on #66DAAE

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

Coastal Morning Lead · 5 colors

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

Medium 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 #66DAAE Secondary #ADB4B7 Surface #F1F2F0 Support #7895A3 Anchor #2D3236

Medium 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 #66DAAE Secondary #AB6D00 Accent #657D4E Surface #F1EDDD Anchor #392B1E

This palette keeps Medium 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 #66DAAE Secondary #496C3E Accent #AB6D00 Surface #EEEAD6 Anchor #3C2F20

Medium 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 #66DAAE Secondary #D4F8E7 Support #989286 Ink #17140F

Medium 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 Medium Aquamarine carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #66DAAE 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 34/100

Cool

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

Softness 62/100

High

Middle-weight — neither delicate nor heavy.

Depth 19/100

Very low

Airy and open — recedes, leaves the composition light.

Naturalness 68/100

High

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

Vintage feel 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 26/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 48/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 26/100

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 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #66DAAE

For UI

For branding

For interior

For fashion

People also use #66DAAE with

Light Green Lagoon Blue 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 10.8:1. Use

Subtle surface Use #E4F4EE for cards and hover fills. Tint 80

Avoid beside #67DAD4 — 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 #66DAAE 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: #66DAAE;
  --color-base-rgb: 102 218 174;
  --color-base-oklch: oklch(80.9% 0.124 165.9);
  --color-50: #F2FCF9;
  --color-100: #DDF8EE;
  --color-200: #BDEFDC;
  --color-300: #90DFC1;
  --color-400: #67CBA5;
  --color-500: #45B087;
  --color-600: #3B876A;
  --color-700: #2F604D;
  --color-800: #223F34;
  --color-900: #162721;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  medium-aquamarine: {
    50: '#F2FCF9',
    100: '#DDF8EE',
    200: '#BDEFDC',
    300: '#90DFC1',
    400: '#67CBA5',
    500: '#45B087',
    600: '#3B876A',
    700: '#2F604D',
    800: '#223F34',
    900: '#162721',
  },
}

$base: #66DAAE;
$base-ink: #141310;
$base-50: #F2FCF9;
$base-100: #DDF8EE;
$base-200: #BDEFDC;
$base-300: #90DFC1;
$base-400: #67CBA5;
$base-500: #45B087;
$base-600: #3B876A;
$base-700: #2F604D;
$base-800: #223F34;
$base-900: #162721;
$base-hover: #33CE93;
$base-subtle: #D6F0E6;

{
    "color": {
        "base": {
            "value": "#66DAAE",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F2FCF9",
                "type": "color"
            },
            "100": {
                "value": "#DDF8EE",
                "type": "color"
            },
            "200": {
                "value": "#BDEFDC",
                "type": "color"
            },
            "300": {
                "value": "#90DFC1",
                "type": "color"
            },
            "400": {
                "value": "#67CBA5",
                "type": "color"
            },
            "500": {
                "value": "#45B087",
                "type": "color"
            },
            "600": {
                "value": "#3B876A",
                "type": "color"
            },
            "700": {
                "value": "#2F604D",
                "type": "color"
            },
            "800": {
                "value": "#223F34",
                "type": "color"
            },
            "900": {
                "value": "#162721",
                "type": "color"
            }
        }
    }
}

Palettes built on #66DAAE

Color Lab

Pairs with #66DAAE

UI roles & guardrails

In real applications

Scales

Every model

Export