What color is #399BAD?

#399BAD is a medium cyan. In RGB it is rgb(57, 155, 173), and in HSL hsl(189, 50%, 45%).

Is #399BAD accessible as text?

On white, #399BAD has a contrast ratio of 3.25:1 (fails WCAG AA for body text); on black it is 6.47:1 (passes). For text placed on #399BAD, use black for the best readability.

What is the closest Tailwind color to #399BAD?

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

What colors go well with #399BAD?

#399BAD pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #AC4B39. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #399BAD below.

Is #399BAD good for buttons?

#399BAD works well for buttons and highlights, but use black text on #399BAD — white text only reaches 3.25:1, below the 4.5:1 needed for normal-size labels.

Is #399BAD the same as CSS cadetblue?

No — #399BAD is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#399BAD Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #399BAD

Not just a swatch — here's how #399BAD works with other colors. Named schemes with #399BAD in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #399BAD Accent #A6C4BE Surface #DFDABE 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 #399BAD Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 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 #399BAD Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #6DC0D0

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 #399BAD Secondary #A1BDC4 Support #979286 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 #399BAD Anchor #372C1D Surface #EBE5D0 Accent #7E9D74 Secondary #3A3933

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 #399BAD 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 24/100

Cool

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

Softness 54/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 36/100

Low

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

Naturalness 4/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 52/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 43/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 36/100

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 38/100

Low

Usable as a tinted surface in measured doses.

Print safety 75/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #399BAD

For UI

For branding

For interior

For fashion

People also use #399BAD with

Emerald Green Denim Blue Sienna 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 5.7:1. Use

Subtle surface Use #D9EAED for cards and hover fills. Tint 80

Avoid beside #3975AC — 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 #399BAD 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: #399BAD;
  --color-base-rgb: 57 155 173;
  --color-base-oklch: oklch(64.0% 0.093 212.0);
  --color-50: #F3FAFC;
  --color-100: #E0F2F5;
  --color-200: #C2E4EB;
  --color-300: #97CED8;
  --color-400: #70B6C2;
  --color-500: #4E99A6;
  --color-600: #427780;
  --color-700: #33565C;
  --color-800: #24393C;
  --color-900: #182325;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  bondi-blue: {
    50: '#F3FAFC',
    100: '#E0F2F5',
    200: '#C2E4EB',
    300: '#97CED8',
    400: '#70B6C2',
    500: '#4E99A6',
    600: '#427780',
    700: '#33565C',
    800: '#24393C',
    900: '#182325',
  },
}

$base: #399BAD;
$base-ink: #141310;
$base-50: #F3FAFC;
$base-100: #E0F2F5;
$base-200: #C2E4EB;
$base-300: #97CED8;
$base-400: #70B6C2;
$base-500: #4E99A6;
$base-600: #427780;
$base-700: #33565C;
$base-800: #24393C;
$base-900: #182325;
$base-hover: #2E7C8A;
$base-subtle: #C5E0E5;

{
    "color": {
        "base": {
            "value": "#399BAD",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FAFC",
                "type": "color"
            },
            "100": {
                "value": "#E0F2F5",
                "type": "color"
            },
            "200": {
                "value": "#C2E4EB",
                "type": "color"
            },
            "300": {
                "value": "#97CED8",
                "type": "color"
            },
            "400": {
                "value": "#70B6C2",
                "type": "color"
            },
            "500": {
                "value": "#4E99A6",
                "type": "color"
            },
            "600": {
                "value": "#427780",
                "type": "color"
            },
            "700": {
                "value": "#33565C",
                "type": "color"
            },
            "800": {
                "value": "#24393C",
                "type": "color"
            },
            "900": {
                "value": "#182325",
                "type": "color"
            }
        }
    }
}

Palettes built on #399BAD

Color Lab

Pairs with #399BAD

UI roles & guardrails

In real applications

Scales

Every model

Export