What color is #339DB5?

#339DB5 is a medium cyan. In RGB it is rgb(51, 157, 181), and in HSL hsl(191, 56%, 45%).

Is #339DB5 accessible as text?

On white, #339DB5 has a contrast ratio of 3.17:1 (fails WCAG AA for body text); on black it is 6.63:1 (passes). For text placed on #339DB5, use black for the best readability.

What is the closest Tailwind color to #339DB5?

The nearest Tailwind CSS token is cyan-600 (#0092B8).

What colors go well with #339DB5?

#339DB5 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B34A32. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #339DB5 below.

Is #339DB5 good for buttons?

#339DB5 works well for buttons and highlights, but use black text on #339DB5 — white text only reaches 3.17:1, below the 4.5:1 needed for normal-size labels.

Is #339DB5 the same as CSS cadetblue?

No — #339DB5 is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#339DB5 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #339DB5

Not just a swatch — here's how #339DB5 works with other colors. Named schemes with #339DB5 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #339DB5 Accent #A6C4BF Surface #DFDABF Secondary #9AA0A0 Anchor #1E3549

Bondi 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 #339DB5 Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 Anchor #2E3236

Bondi 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 #339DB5 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #6AC2D8

Bondi 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 Bondi Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #339DB5 Secondary #A1C0C8 Support #969386 Ink #16140F

Bondi 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 Bondi Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #339DB5 Anchor #372C1D Surface #EBE5D0 Accent #7E9D74 Secondary #393933

Bondi 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 #339DB5 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 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 35/100

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 49/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 39/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 74/100

High

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

Surface fit 36/100

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 #339DB5

For UI

For branding

For interior

For fashion

People also use #339DB5 with

Emerald Green Cerulean Rust 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 Fine for headings 24px+ on white. Pass

Background Pair with #141310 text at 5.9:1. Use

Subtle surface Use #D8EAEE for cards and hover fills. Tint 80

Avoid beside #3271B3 — 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 #339DB5 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: #339DB5;
  --color-base-rgb: 51 157 181;
  --color-base-oklch: oklch(64.7% 0.100 216.2);
  --color-50: #F3FAFC;
  --color-100: #DFF2F7;
  --color-200: #BFE5ED;
  --color-300: #93CEDC;
  --color-400: #6BB6C7;
  --color-500: #499AAC;
  --color-600: #3E7784;
  --color-700: #31565E;
  --color-800: #23393E;
  --color-900: #172326;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  bondi-blue: {
    50: '#F3FAFC',
    100: '#DFF2F7',
    200: '#BFE5ED',
    300: '#93CEDC',
    400: '#6BB6C7',
    500: '#499AAC',
    600: '#3E7784',
    700: '#31565E',
    800: '#23393E',
    900: '#172326',
  },
}

$base: #339DB5;
$base-ink: #141310;
$base-50: #F3FAFC;
$base-100: #DFF2F7;
$base-200: #BFE5ED;
$base-300: #93CEDC;
$base-400: #6BB6C7;
$base-500: #499AAC;
$base-600: #3E7784;
$base-700: #31565E;
$base-800: #23393E;
$base-900: #172326;
$base-hover: #287C8F;
$base-subtle: #C3E0E7;

{
    "color": {
        "base": {
            "value": "#339DB5",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FAFC",
                "type": "color"
            },
            "100": {
                "value": "#DFF2F7",
                "type": "color"
            },
            "200": {
                "value": "#BFE5ED",
                "type": "color"
            },
            "300": {
                "value": "#93CEDC",
                "type": "color"
            },
            "400": {
                "value": "#6BB6C7",
                "type": "color"
            },
            "500": {
                "value": "#499AAC",
                "type": "color"
            },
            "600": {
                "value": "#3E7784",
                "type": "color"
            },
            "700": {
                "value": "#31565E",
                "type": "color"
            },
            "800": {
                "value": "#23393E",
                "type": "color"
            },
            "900": {
                "value": "#172326",
                "type": "color"
            }
        }
    }
}

Palettes built on #339DB5

Color Lab

Pairs with #339DB5

UI roles & guardrails

In real applications

Scales

Every model

Export