What color is #64BDCD?

#64BDCD is a medium cyan. In RGB it is rgb(100, 189, 205), and in HSL hsl(189, 51%, 60%).

Is #64BDCD accessible as text?

On white, #64BDCD has a contrast ratio of 2.16:1 (fails WCAG AA for body text); on black it is 9.70:1 (passes). For text placed on #64BDCD, use black for the best readability.

What is the closest Tailwind color to #64BDCD?

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

What colors go well with #64BDCD?

#64BDCD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #CD7565. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #64BDCD below.

Is #64BDCD good for buttons?

#64BDCD works well for buttons and highlights, but use black text on #64BDCD — white text only reaches 2.16:1, below the 4.5:1 needed for normal-size labels.

Is #64BDCD the same as CSS darkturquoise?

No — #64BDCD is not the CSS named color darkturquoise, but darkturquoise (#00CED1) is the closest CSS named color.

#64BDCD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #64BDCD

Not just a swatch — here's how #64BDCD works with other colors. Named schemes with #64BDCD in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #64BDCD Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Lagoon Blue 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 #64BDCD Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Lagoon Blue 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 #64BDCD Surface #ECEADC Highlight #F4F2E7 Secondary #B4B19F Ink #2A2723

Lagoon Blue 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 #64BDCD Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #94E3F1

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #64BDCD Secondary #C4E0E6 Support #979286 Ink #16140F

Lagoon Blue 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 Lagoon Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #64BDCD 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 25/100

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 25/100

Low

Airy and open — recedes, leaves the composition light.

Naturalness 5/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 32/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 39/100

Low

Workable accent with care around contrast.

Surface fit 49/100

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 #64BDCD

For UI

For branding

For interior

For fashion

People also use #64BDCD with

Medium Aquamarine Glaucous Terracotta 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 8.6:1. Use

Subtle surface Use #E3F0F2 for cards and hover fills. Tint 80

Avoid beside #659BCD — 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 #64BDCD 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: #64BDCD;
  --color-base-rgb: 100 189 205;
  --color-base-oklch: oklch(74.9% 0.088 210.6);
  --color-50: #F3FAFC;
  --color-100: #E0F2F6;
  --color-200: #C1E5EB;
  --color-300: #97CFD9;
  --color-400: #6FB7C3;
  --color-500: #4E9AA7;
  --color-600: #417781;
  --color-700: #33565C;
  --color-800: #24393D;
  --color-900: #182326;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  lagoon-blue: {
    50: '#F3FAFC',
    100: '#E0F2F6',
    200: '#C1E5EB',
    300: '#97CFD9',
    400: '#6FB7C3',
    500: '#4E9AA7',
    600: '#417781',
    700: '#33565C',
    800: '#24393D',
    900: '#182326',
  },
}

$base: #64BDCD;
$base-ink: #141310;
$base-50: #F3FAFC;
$base-100: #E0F2F6;
$base-200: #C1E5EB;
$base-300: #97CFD9;
$base-400: #6FB7C3;
$base-500: #4E9AA7;
$base-600: #417781;
$base-700: #33565C;
$base-800: #24393D;
$base-900: #182326;
$base-hover: #3CA6B9;
$base-subtle: #D5E9EC;

{
    "color": {
        "base": {
            "value": "#64BDCD",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FAFC",
                "type": "color"
            },
            "100": {
                "value": "#E0F2F6",
                "type": "color"
            },
            "200": {
                "value": "#C1E5EB",
                "type": "color"
            },
            "300": {
                "value": "#97CFD9",
                "type": "color"
            },
            "400": {
                "value": "#6FB7C3",
                "type": "color"
            },
            "500": {
                "value": "#4E9AA7",
                "type": "color"
            },
            "600": {
                "value": "#417781",
                "type": "color"
            },
            "700": {
                "value": "#33565C",
                "type": "color"
            },
            "800": {
                "value": "#24393D",
                "type": "color"
            },
            "900": {
                "value": "#182326",
                "type": "color"
            }
        }
    }
}