What color is #339CA6?

#339CA6 is a medium cyan. In RGB it is rgb(51, 156, 166), and in HSL hsl(185, 53%, 43%).

Is #339CA6 accessible as text?

On white, #339CA6 has a contrast ratio of 3.26:1 (fails WCAG AA for body text); on black it is 6.45:1 (passes). For text placed on #339CA6, use black for the best readability.

What is the closest Tailwind color to #339CA6?

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

What colors go well with #339CA6?

#339CA6 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A83D34. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #339CA6 below.

Is #339CA6 good for buttons?

#339CA6 works well for buttons and highlights, but use black text on #339CA6 — white text only reaches 3.26:1, below the 4.5:1 needed for normal-size labels.

Is #339CA6 the same as CSS cadetblue?

No — #339CA6 is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#339CA6 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #339CA6

Not just a swatch — here's how #339CA6 works with other colors. Named schemes with #339CA6 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #339CA6 Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

Cadet 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 #339CA6 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 Anchor #2E3236

Cadet 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 #339CA6 Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #6AC0C9

Cadet 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 Cadet Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #339CA6 Secondary #9FBDC1 Support #979286 Ink #16140F

Cadet 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 Cadet Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #339CA6 Anchor #372C1D Surface #EBE5D0 Accent #7F9D73 Secondary #3A3933

Cadet 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 #339CA6 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 25/100

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 8/100

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 75/100

High

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

Surface fit 37/100

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 #339CA6

For UI

For branding

For interior

For fashion

People also use #339CA6 with

Emerald Green Lapis Lazuli Chestnut 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 #D7EBED for cards and hover fills. Tint 80

Avoid beside #3477A8 — 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 #339CA6 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: #339CA6;
  --color-base-rgb: 51 156 166;
  --color-base-oklch: oklch(63.8% 0.094 204.2);
  --color-50: #F3FBFC;
  --color-100: #DFF4F6;
  --color-200: #C1E8EC;
  --color-300: #95D4DA;
  --color-400: #6DBEC5;
  --color-500: #4CA1A9;
  --color-600: #407C82;
  --color-700: #32595D;
  --color-800: #243B3D;
  --color-900: #172526;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  cadet-blue: {
    50: '#F3FBFC',
    100: '#DFF4F6',
    200: '#C1E8EC',
    300: '#95D4DA',
    400: '#6DBEC5',
    500: '#4CA1A9',
    600: '#407C82',
    700: '#32595D',
    800: '#243B3D',
    900: '#172526',
  },
}

$base: #339CA6;
$base-ink: #141310;
$base-50: #F3FBFC;
$base-100: #DFF4F6;
$base-200: #C1E8EC;
$base-300: #95D4DA;
$base-400: #6DBEC5;
$base-500: #4CA1A9;
$base-600: #407C82;
$base-700: #32595D;
$base-800: #243B3D;
$base-900: #172526;
$base-hover: #297E86;
$base-subtle: #C2E2E5;

{
    "color": {
        "base": {
            "value": "#339CA6",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FBFC",
                "type": "color"
            },
            "100": {
                "value": "#DFF4F6",
                "type": "color"
            },
            "200": {
                "value": "#C1E8EC",
                "type": "color"
            },
            "300": {
                "value": "#95D4DA",
                "type": "color"
            },
            "400": {
                "value": "#6DBEC5",
                "type": "color"
            },
            "500": {
                "value": "#4CA1A9",
                "type": "color"
            },
            "600": {
                "value": "#407C82",
                "type": "color"
            },
            "700": {
                "value": "#32595D",
                "type": "color"
            },
            "800": {
                "value": "#243B3D",
                "type": "color"
            },
            "900": {
                "value": "#172526",
                "type": "color"
            }
        }
    }
}

Palettes built on #339CA6

Color Lab

Pairs with #339CA6

UI roles & guardrails

In real applications

Scales

Every model

Export