What color is #409CB3?

#409CB3 is a medium cyan. In RGB it is rgb(64, 156, 179), and in HSL hsl(192, 47%, 48%).

Is #409CB3 accessible as text?

On white, #409CB3 has a contrast ratio of 3.17:1 (fails WCAG AA for body text); on black it is 6.62:1 (passes). For text placed on #409CB3, use black for the best readability.

What is the closest Tailwind color to #409CB3?

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

What colors go well with #409CB3?

#409CB3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #B45841. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #409CB3 below.

Is #409CB3 good for buttons?

#409CB3 works well for buttons and highlights, but use black text on #409CB3 — white text only reaches 3.17:1, below the 4.5:1 needed for normal-size labels.

Is #409CB3 the same as CSS cadetblue?

No — #409CB3 is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#409CB3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #409CB3

Not just a swatch — here's how #409CB3 works with other colors. Named schemes with #409CB3 in its natural role, and a note on why the supporting colors balance it.

Nordic Calm Accent · 5 colors

Accent #409CB3 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.

Coastal Morning Lead · 5 colors

Lead #409CB3 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.

Japanese Sand Base · 5 colors

Base #409CB3 Surface #ECEADC Highlight #F4F2E7 Secondary #B3B19F Ink #2A2723

Bondi 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 #409CB3 Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #72C1D6

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 #409CB3 Secondary #A3BFC7 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.

Build a working theme in the generator →

Color Lab

How #409CB3 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 23/100

Cool

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

Softness 55/100

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 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 42/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 72/100

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 #409CB3

For UI

For branding

For interior

For fashion

People also use #409CB3 with

Medium Aquamarine 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 5.9:1. Use

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

Avoid beside #4177B4 — 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 #409CB3 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: #409CB3;
  --color-base-rgb: 64 156 179;
  --color-base-oklch: oklch(64.7% 0.092 217.1);
  --color-50: #F3FAFB;
  --color-100: #E0F1F5;
  --color-200: #C3E2E9;
  --color-300: #99CAD6;
  --color-400: #72B0C0;
  --color-500: #5193A4;
  --color-600: #44727E;
  --color-700: #34535A;
  --color-800: #25373C;
  --color-900: #182225;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  bondi-blue: {
    50: '#F3FAFB',
    100: '#E0F1F5',
    200: '#C3E2E9',
    300: '#99CAD6',
    400: '#72B0C0',
    500: '#5193A4',
    600: '#44727E',
    700: '#34535A',
    800: '#25373C',
    900: '#182225',
  },
}

$base: #409CB3;
$base-ink: #141310;
$base-50: #F3FAFB;
$base-100: #E0F1F5;
$base-200: #C3E2E9;
$base-300: #99CAD6;
$base-400: #72B0C0;
$base-500: #5193A4;
$base-600: #44727E;
$base-700: #34535A;
$base-800: #25373C;
$base-900: #182225;
$base-hover: #347E90;
$base-subtle: #C9E0E5;

{
    "color": {
        "base": {
            "value": "#409CB3",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FAFB",
                "type": "color"
            },
            "100": {
                "value": "#E0F1F5",
                "type": "color"
            },
            "200": {
                "value": "#C3E2E9",
                "type": "color"
            },
            "300": {
                "value": "#99CAD6",
                "type": "color"
            },
            "400": {
                "value": "#72B0C0",
                "type": "color"
            },
            "500": {
                "value": "#5193A4",
                "type": "color"
            },
            "600": {
                "value": "#44727E",
                "type": "color"
            },
            "700": {
                "value": "#34535A",
                "type": "color"
            },
            "800": {
                "value": "#25373C",
                "type": "color"
            },
            "900": {
                "value": "#182225",
                "type": "color"
            }
        }
    }
}

Palettes built on #409CB3

Color Lab

Pairs with #409CB3

UI roles & guardrails

In real applications

Scales

Every model

Export