What color is #3FA5BE?

#3FA5BE is a medium cyan. In RGB it is rgb(63, 165, 190), and in HSL hsl(192, 50%, 50%).

Is #3FA5BE accessible as text?

On white, #3FA5BE has a contrast ratio of 2.86:1 (fails WCAG AA for body text); on black it is 7.34:1 (passes). For text placed on #3FA5BE, use black for the best readability.

What is the closest Tailwind color to #3FA5BE?

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

What colors go well with #3FA5BE?

#3FA5BE pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #BF5940. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3FA5BE below.

Is #3FA5BE good for buttons?

#3FA5BE works well for buttons and highlights, but use black text on #3FA5BE — white text only reaches 2.86:1, below the 4.5:1 needed for normal-size labels.

Is #3FA5BE the same as CSS cadetblue?

No — #3FA5BE is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#3FA5BE Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3FA5BE

Not just a swatch — here's how #3FA5BE works with other colors. Named schemes with #3FA5BE in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3FA5BE Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E3549

Carolina Blue 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 #3FA5BE Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 Anchor #2E3236

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

Tech Product Signal · 5 colors

Signal #3FA5BE Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #74CAE1

Carolina 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 Carolina Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #3FA5BE Secondary #AAC8D1 Support #969386 Ink #16140F

Carolina 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 Carolina Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #3FA5BE Anchor #372C1D Surface #EBE5D0 Accent #7E9D74 Secondary #393933

Carolina Blue anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Build a working theme in the generator →

Color Lab

How #3FA5BE 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 21/100

Cool

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

Softness 56/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 33/100

Low

Mid depth — usable as an accent or a muted ground.

Naturalness 3/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 47/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 40/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 38/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 65/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 39/100

Low

Usable as a tinted surface in measured doses.

Print safety 73/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3FA5BE

For UI

For branding

For interior

For fashion

People also use #3FA5BE with

Medium Aquamarine Denim Blue Burnt Orange Platinum Dark Slate Gray

UI roles & guardrails

Primary action Safe as a filled button with near-black label. AA

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 6.5:1. Use

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

Avoid beside #407BBF — 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 #3FA5BE 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: #3FA5BE;
  --color-base-rgb: 63 165 190;
  --color-base-oklch: oklch(67.3% 0.099 217.1);
  --color-50: #F3FAFC;
  --color-100: #E0F1F5;
  --color-200: #C2E2EB;
  --color-300: #97CBD8;
  --color-400: #70B2C2;
  --color-500: #4E95A6;
  --color-600: #427480;
  --color-700: #33545C;
  --color-800: #24383C;
  --color-900: #182325;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  carolina-blue: {
    50: '#F3FAFC',
    100: '#E0F1F5',
    200: '#C2E2EB',
    300: '#97CBD8',
    400: '#70B2C2',
    500: '#4E95A6',
    600: '#427480',
    700: '#33545C',
    800: '#24383C',
    900: '#182325',
  },
}

$base: #3FA5BE;
$base-ink: #141310;
$base-50: #F3FAFC;
$base-100: #E0F1F5;
$base-200: #C2E2EB;
$base-300: #97CBD8;
$base-400: #70B2C2;
$base-500: #4E95A6;
$base-600: #427480;
$base-700: #33545C;
$base-800: #24383C;
$base-900: #182325;
$base-hover: #338599;
$base-subtle: #CAE1E7;

{
    "color": {
        "base": {
            "value": "#3FA5BE",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FAFC",
                "type": "color"
            },
            "100": {
                "value": "#E0F1F5",
                "type": "color"
            },
            "200": {
                "value": "#C2E2EB",
                "type": "color"
            },
            "300": {
                "value": "#97CBD8",
                "type": "color"
            },
            "400": {
                "value": "#70B2C2",
                "type": "color"
            },
            "500": {
                "value": "#4E95A6",
                "type": "color"
            },
            "600": {
                "value": "#427480",
                "type": "color"
            },
            "700": {
                "value": "#33545C",
                "type": "color"
            },
            "800": {
                "value": "#24383C",
                "type": "color"
            },
            "900": {
                "value": "#182325",
                "type": "color"
            }
        }
    }
}

Palettes built on #3FA5BE

Color Lab

Pairs with #3FA5BE

UI roles & guardrails

In real applications

Scales

Every model

Export