What color is #66AED2?

#66AED2 is a medium cyan-blue. In RGB it is rgb(102, 174, 210), and in HSL hsl(200, 55%, 61%).

Is #66AED2 accessible as text?

On white, #66AED2 has a contrast ratio of 2.46:1 (fails WCAG AA for body text); on black it is 8.55:1 (passes). For text placed on #66AED2, use black for the best readability.

What is the closest Tailwind color to #66AED2?

The nearest Tailwind CSS token is cyan-500 (#00B8DB).

What colors go well with #66AED2?

#66AED2 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #D28965. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #66AED2 below.

Is #66AED2 good for buttons?

#66AED2 works well for buttons and highlights, but use black text on #66AED2 — white text only reaches 2.46:1, below the 4.5:1 needed for normal-size labels.

Is #66AED2 the same as CSS deepskyblue?

No — #66AED2 is not the CSS named color deepskyblue, but deepskyblue (#00BFFF) is the closest CSS named color.

#66AED2 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #66AED2

Not just a swatch — here's how #66AED2 works with other colors. Named schemes with #66AED2 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #66AED2 Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

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

Coastal Morning Lead · 5 colors

Lead #66AED2 Accent #A6C4BF Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

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

Japanese Sand Base · 5 colors

Base #66AED2 Surface #ECEADC Highlight #F4F2E7 Secondary #B3B29F Ink #2A2723

Iceberg 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.

Tech Product Signal · 5 colors

Signal #66AED2 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #93D4F5

Iceberg is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Iceberg.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #66AED2 Secondary #BDD4E1 Support #969386 Ink #16140F

Iceberg 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 Iceberg carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #66AED2 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 23/100

Cool

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

Softness 61/100

High

Middle-weight — neither delicate nor heavy.

Depth 28/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 35/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 49/100

Moderate

Workable accent with care around contrast.

Surface fit 46/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #66AED2

For UI

For branding

For interior

For fashion

People also use #66AED2 with

Turquoise Slate Blue Peru Platinum Charcoal

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 7.6:1. Use

Subtle surface Use #E3EEF3 for cards and hover fills. Tint 80

Avoid beside #6589D2 — 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 #66AED2 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: #66AED2;
  --color-base-rgb: 102 174 210;
  --color-base-oklch: oklch(71.7% 0.089 231.6);
  --color-50: #F3F9FC;
  --color-100: #DFEFF6;
  --color-200: #C0DEED;
  --color-300: #94C3DB;
  --color-400: #6BA8C7;
  --color-500: #4A8BAB;
  --color-600: #3F6C83;
  --color-700: #314F5E;
  --color-800: #23353E;
  --color-900: #172126;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  iceberg: {
    50: '#F3F9FC',
    100: '#DFEFF6',
    200: '#C0DEED',
    300: '#94C3DB',
    400: '#6BA8C7',
    500: '#4A8BAB',
    600: '#3F6C83',
    700: '#314F5E',
    800: '#23353E',
    900: '#172126',
  },
}

$base: #66AED2;
$base-ink: #141310;
$base-50: #F3F9FC;
$base-100: #DFEFF6;
$base-200: #C0DEED;
$base-300: #94C3DB;
$base-400: #6BA8C7;
$base-500: #4A8BAB;
$base-600: #3F6C83;
$base-700: #314F5E;
$base-800: #23353E;
$base-900: #172126;
$base-hover: #3893C1;
$base-subtle: #D5E5EE;

{
    "color": {
        "base": {
            "value": "#66AED2",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F9FC",
                "type": "color"
            },
            "100": {
                "value": "#DFEFF6",
                "type": "color"
            },
            "200": {
                "value": "#C0DEED",
                "type": "color"
            },
            "300": {
                "value": "#94C3DB",
                "type": "color"
            },
            "400": {
                "value": "#6BA8C7",
                "type": "color"
            },
            "500": {
                "value": "#4A8BAB",
                "type": "color"
            },
            "600": {
                "value": "#3F6C83",
                "type": "color"
            },
            "700": {
                "value": "#314F5E",
                "type": "color"
            },
            "800": {
                "value": "#23353E",
                "type": "color"
            },
            "900": {
                "value": "#172126",
                "type": "color"
            }
        }
    }
}

Palettes built on #66AED2

Color Lab

Pairs with #66AED2

UI roles & guardrails

In real applications

Scales

Every model

Export