What color is #63ADBA?

#63ADBA is a medium cyan. In RGB it is rgb(99, 173, 186), and in HSL hsl(189, 39%, 56%).

Is #63ADBA accessible as text?

On white, #63ADBA has a contrast ratio of 2.56:1 (fails WCAG AA for body text); on black it is 8.22:1 (passes). For text placed on #63ADBA, use black for the best readability.

What is the closest Tailwind color to #63ADBA?

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

What colors go well with #63ADBA?

#63ADBA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BB7063. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #63ADBA below.

Is #63ADBA good for buttons?

#63ADBA works well for buttons and highlights, but use black text on #63ADBA — white text only reaches 2.56:1, below the 4.5:1 needed for normal-size labels.

Is #63ADBA the same as CSS cadetblue?

No — #63ADBA is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#63ADBA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #63ADBA

Not just a swatch — here's how #63ADBA works with other colors. Named schemes with #63ADBA in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #63ADBA Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Verdigris 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 #63ADBA Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Verdigris 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 #63ADBA Surface #ECEADC Highlight #F4F2E7 Secondary #B4B19F Ink #2A2723

Verdigris 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 #63ADBA Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #90D2DE

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #63ADBA Secondary #B9D1D6 Support #979286 Ink #16140F

Verdigris 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 Verdigris carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #63ADBA 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 62/100

High

Middle-weight — neither delicate nor heavy.

Depth 29/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 4/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 44/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 36/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 29/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 50/100

Moderate

Workable accent with care around contrast.

Surface fit 49/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 80/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #63ADBA

For UI

For branding

For interior

For fashion

People also use #63ADBA with

Medium Aquamarine Glaucous Rose Gold 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 7.3:1. Use

Subtle surface Use #E2EDEF for cards and hover fills. Tint 80

Avoid beside #6390BB — 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 #63ADBA 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: #63ADBA;
  --color-base-rgb: 99 173 186;
  --color-base-oklch: oklch(70.4% 0.076 210.0);
  --color-50: #F4FAFB;
  --color-100: #E2F0F3;
  --color-200: #C6E1E6;
  --color-300: #9EC9D1;
  --color-400: #79B0B9;
  --color-500: #58929D;
  --color-600: #497279;
  --color-700: #385257;
  --color-800: #27373A;
  --color-900: #192224;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  verdigris: {
    50: '#F4FAFB',
    100: '#E2F0F3',
    200: '#C6E1E6',
    300: '#9EC9D1',
    400: '#79B0B9',
    500: '#58929D',
    600: '#497279',
    700: '#385257',
    800: '#27373A',
    900: '#192224',
  },
}

$base: #63ADBA;
$base-ink: #141310;
$base-50: #F4FAFB;
$base-100: #E2F0F3;
$base-200: #C6E1E6;
$base-300: #9EC9D1;
$base-400: #79B0B9;
$base-500: #58929D;
$base-600: #497279;
$base-700: #385257;
$base-800: #27373A;
$base-900: #192224;
$base-hover: #46919F;
$base-subtle: #D3E4E7;

{
    "color": {
        "base": {
            "value": "#63ADBA",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FAFB",
                "type": "color"
            },
            "100": {
                "value": "#E2F0F3",
                "type": "color"
            },
            "200": {
                "value": "#C6E1E6",
                "type": "color"
            },
            "300": {
                "value": "#9EC9D1",
                "type": "color"
            },
            "400": {
                "value": "#79B0B9",
                "type": "color"
            },
            "500": {
                "value": "#58929D",
                "type": "color"
            },
            "600": {
                "value": "#497279",
                "type": "color"
            },
            "700": {
                "value": "#385257",
                "type": "color"
            },
            "800": {
                "value": "#27373A",
                "type": "color"
            },
            "900": {
                "value": "#192224",
                "type": "color"
            }
        }
    }
}

Palettes built on #63ADBA

Color Lab

Pairs with #63ADBA

UI roles & guardrails

In real applications

Scales

Every model

Export