What color is #63BBBB?

#63BBBB is a medium cyan. In RGB it is rgb(99, 187, 187), and in HSL hsl(180, 39%, 56%).

Is #63BBBB accessible as text?

On white, #63BBBB has a contrast ratio of 2.24:1 (fails WCAG AA for body text); on black it is 9.36:1 (passes). For text placed on #63BBBB, use black for the best readability.

What is the closest Tailwind color to #63BBBB?

The nearest Tailwind CSS token is teal-500 (#00BBA7).

What colors go well with #63BBBB?

#63BBBB pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BB6363. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #63BBBB below.

Is #63BBBB good for buttons?

#63BBBB works well for buttons and highlights, but use black text on #63BBBB — white text only reaches 2.24:1, below the 4.5:1 needed for normal-size labels.

Is #63BBBB the same as CSS lightseagreen?

No — #63BBBB is not the CSS named color lightseagreen, but lightseagreen (#20B2AA) 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.

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

Palettes built on #63BBBB

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

Nordic Calm Accent · 5 colors

Accent #63BBBB Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A4 Anchor #2E3236

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

Japanese Sand Base · 5 colors

Base #63BBBB Surface #EDEADC Highlight #F5F2E7 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.

Coastal Morning Lead · 5 colors

Lead #63BBBB Accent #A6C4BD Surface #E0DABE 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #63BBBB Secondary #C1DDDD 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.

Tech Product Signal · 5 colors

Signal #63BBBB Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #93E0E0

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.

Build a working theme in the generator →

Color Lab

How #63BBBB 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 63/100

High

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

Depth 26/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 14/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 33/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 33/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 42/100

Moderate

Workable accent with care around contrast.

Surface fit 49/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 79/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #63BBBB

For UI

For branding

For interior

For fashion

People also use #63BBBB 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 8.3:1. Use

Subtle surface Use #E2EFEF for cards and hover fills. Tint 80

Avoid beside #639DBB — 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 #63BBBB 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: #63BBBB;
  --color-base-rgb: 99 187 187;
  --color-base-oklch: oklch(73.8% 0.085 195.5);
  --color-50: #F4FBFB;
  --color-100: #E2F3F3;
  --color-200: #C6E6E6;
  --color-300: #9ED1D1;
  --color-400: #79B9B9;
  --color-500: #589D9D;
  --color-600: #497979;
  --color-700: #385757;
  --color-800: #273A3A;
  --color-900: #192424;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  verdigris: {
    50: '#F4FBFB',
    100: '#E2F3F3',
    200: '#C6E6E6',
    300: '#9ED1D1',
    400: '#79B9B9',
    500: '#589D9D',
    600: '#497979',
    700: '#385757',
    800: '#273A3A',
    900: '#192424',
  },
}

$base: #63BBBB;
$base-ink: #141310;
$base-50: #F4FBFB;
$base-100: #E2F3F3;
$base-200: #C6E6E6;
$base-300: #9ED1D1;
$base-400: #79B9B9;
$base-500: #589D9D;
$base-600: #497979;
$base-700: #385757;
$base-800: #273A3A;
$base-900: #192424;
$base-hover: #469F9F;
$base-subtle: #D3E7E7;

{
    "color": {
        "base": {
            "value": "#63BBBB",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FBFB",
                "type": "color"
            },
            "100": {
                "value": "#E2F3F3",
                "type": "color"
            },
            "200": {
                "value": "#C6E6E6",
                "type": "color"
            },
            "300": {
                "value": "#9ED1D1",
                "type": "color"
            },
            "400": {
                "value": "#79B9B9",
                "type": "color"
            },
            "500": {
                "value": "#589D9D",
                "type": "color"
            },
            "600": {
                "value": "#497979",
                "type": "color"
            },
            "700": {
                "value": "#385757",
                "type": "color"
            },
            "800": {
                "value": "#273A3A",
                "type": "color"
            },
            "900": {
                "value": "#192424",
                "type": "color"
            }
        }
    }
}

Palettes built on #63BBBB

Color Lab

Pairs with #63BBBB

UI roles & guardrails

In real applications

Scales

Every model

Export