What color is #3BB3EA?

#3BB3EA is a medium, vivid cyan-blue. In RGB it is rgb(59, 179, 234), and in HSL hsl(199, 81%, 57%).

Is #3BB3EA accessible as text?

On white, #3BB3EA has a contrast ratio of 2.38:1 (fails WCAG AA for body text); on black it is 8.82:1 (passes). For text placed on #3BB3EA, use black for the best readability.

What is the closest Tailwind color to #3BB3EA?

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

What colors go well with #3BB3EA?

#3BB3EA pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #EA7139. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3BB3EA below.

Is #3BB3EA good for buttons?

#3BB3EA works well for buttons and highlights, but use black text on #3BB3EA — white text only reaches 2.38:1, below the 4.5:1 needed for normal-size labels.

Is #3BB3EA the same as CSS deepskyblue?

No — #3BB3EA is not the CSS named color deepskyblue, but deepskyblue (#00BFFF) is the closest CSS named color.

#3BB3EA Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3BB3EA

Not just a swatch — here's how #3BB3EA works with other colors. Named schemes with #3BB3EA in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #3BB3EA Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Picton 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 #3BB3EA Secondary #AEB4B8 Surface #F1F2F0 Support #7B93A6 Anchor #2E3236

Picton 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 #3BB3EA Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #76D9FF

Picton 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 Picton Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #3BB3EA Secondary #B6D8EC Support #969386 Ink #16140F

Picton 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 Picton Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #3BB3EA Anchor #372C1D Surface #EAE5D0 Accent #7C9E76 Secondary #393933

Picton 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 #3BB3EA 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 11/100

Cool

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

Softness 55/100

Moderate

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 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 35/100

Low

Understated — leans refined without going austere.

Brand distinctiveness 50/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 52/100

Moderate

Workable accent with care around contrast.

Surface fit 34/100

Low

Usable as a tinted surface in measured doses.

Print safety 67/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #3BB3EA

For UI

For branding

For interior

For fashion

People also use #3BB3EA with

Seafoam Green Neon Blue Burnt Sienna 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 7.8:1. Use

Subtle surface Use #DCEEF6 for cards and hover fills. Tint 80

Avoid beside #3977EA — 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 #3BB3EA at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #3BB3EA;
  --color-base-rgb: 59 179 234;
  --color-base-oklch: oklch(72.5% 0.130 232.9);
  --color-50: #F1FAFE;
  --color-100: #D9F1FC;
  --color-200: #B5E2F7;
  --color-300: #83CBEC;
  --color-400: #56B2DC;
  --color-500: #3395C2;
  --color-600: #2E7393;
  --color-700: #275368;
  --color-800: #1D3844;
  --color-900: #14232A;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  picton-blue: {
    50: '#F1FAFE',
    100: '#D9F1FC',
    200: '#B5E2F7',
    300: '#83CBEC',
    400: '#56B2DC',
    500: '#3395C2',
    600: '#2E7393',
    700: '#275368',
    800: '#1D3844',
    900: '#14232A',
  },
}

$base: #3BB3EA;
$base-ink: #141310;
$base-50: #F1FAFE;
$base-100: #D9F1FC;
$base-200: #B5E2F7;
$base-300: #83CBEC;
$base-400: #56B2DC;
$base-500: #3395C2;
$base-600: #2E7393;
$base-700: #275368;
$base-800: #1D3844;
$base-900: #14232A;
$base-hover: #1697D2;
$base-subtle: #CAE6F2;

{
    "color": {
        "base": {
            "value": "#3BB3EA",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FAFE",
                "type": "color"
            },
            "100": {
                "value": "#D9F1FC",
                "type": "color"
            },
            "200": {
                "value": "#B5E2F7",
                "type": "color"
            },
            "300": {
                "value": "#83CBEC",
                "type": "color"
            },
            "400": {
                "value": "#56B2DC",
                "type": "color"
            },
            "500": {
                "value": "#3395C2",
                "type": "color"
            },
            "600": {
                "value": "#2E7393",
                "type": "color"
            },
            "700": {
                "value": "#275368",
                "type": "color"
            },
            "800": {
                "value": "#1D3844",
                "type": "color"
            },
            "900": {
                "value": "#14232A",
                "type": "color"
            }
        }
    }
}

Palettes built on #3BB3EA

Color Lab

Pairs with #3BB3EA

UI roles & guardrails

In real applications

Scales

Every model

Export