What color is #369E9B?

#369E9B is a medium cyan. In RGB it is rgb(54, 158, 155), and in HSL hsl(178, 49%, 42%).

Is #369E9B accessible as text?

On white, #369E9B has a contrast ratio of 3.22:1 (fails WCAG AA for body text); on black it is 6.52:1 (passes). For text placed on #369E9B, use black for the best readability.

What is the closest Tailwind color to #369E9B?

The nearest Tailwind CSS token is teal-600 (#009689).

What colors go well with #369E9B?

#369E9B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A0373A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #369E9B below.

Is #369E9B good for buttons?

#369E9B works well for buttons and highlights, but use black text on #369E9B — white text only reaches 3.22:1, below the 4.5:1 needed for normal-size labels.

Is #369E9B the same as CSS cadetblue?

No — #369E9B is not the CSS named color cadetblue, but cadetblue (#5F9EA0) is the closest CSS named color.

#369E9B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #369E9B

Not just a swatch — here's how #369E9B works with other colors. Named schemes with #369E9B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #369E9B Accent #A7C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1C3549

Persian Green 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 #369E9B Secondary #AEB4B8 Surface #F1F2F0 Support #7994A4 Anchor #2E3236

Persian Green keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #369E9B Secondary #A0BEBD Support #979286 Ink #16140F

Persian Green 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 Persian Green carrying the quiet middle.

Tech Product Signal · 5 colors

Signal #369E9B Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #6CC2BF

Persian Green is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Persian Green.

Modern Café Dominant · 5 colors

Dominant #369E9B Anchor #382B1E Surface #ECE4D0 Accent #819C72 Secondary #3A3933

Persian Green 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 #369E9B 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 28/100

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 18/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 54/100

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 37/100

Low

Usable as a tinted surface in measured doses.

Print safety 77/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #369E9B

For UI

For branding

For interior

For fashion

People also use #369E9B 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 5.8:1. Use

Subtle surface Use #D7ECEB for cards and hover fills. Tint 80

Avoid beside #3780A0 — 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 #369E9B 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: #369E9B;
  --color-base-rgb: 54 158 155;
  --color-base-oklch: oklch(64.0% 0.093 192.3);
  --color-50: #F3FBFB;
  --color-100: #E0F5F4;
  --color-200: #C2EAE9;
  --color-300: #98D7D5;
  --color-400: #70C2BF;
  --color-500: #4FA6A3;
  --color-600: #427F7D;
  --color-700: #345B5A;
  --color-800: #253C3B;
  --color-900: #182525;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  persian-green: {
    50: '#F3FBFB',
    100: '#E0F5F4',
    200: '#C2EAE9',
    300: '#98D7D5',
    400: '#70C2BF',
    500: '#4FA6A3',
    600: '#427F7D',
    700: '#345B5A',
    800: '#253C3B',
    900: '#182525',
  },
}

$base: #369E9B;
$base-ink: #141310;
$base-50: #F3FBFB;
$base-100: #E0F5F4;
$base-200: #C2EAE9;
$base-300: #98D7D5;
$base-400: #70C2BF;
$base-500: #4FA6A3;
$base-600: #427F7D;
$base-700: #345B5A;
$base-800: #253C3B;
$base-900: #182525;
$base-hover: #2C807D;
$base-subtle: #C2E3E2;

{
    "color": {
        "base": {
            "value": "#369E9B",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3FBFB",
                "type": "color"
            },
            "100": {
                "value": "#E0F5F4",
                "type": "color"
            },
            "200": {
                "value": "#C2EAE9",
                "type": "color"
            },
            "300": {
                "value": "#98D7D5",
                "type": "color"
            },
            "400": {
                "value": "#70C2BF",
                "type": "color"
            },
            "500": {
                "value": "#4FA6A3",
                "type": "color"
            },
            "600": {
                "value": "#427F7D",
                "type": "color"
            },
            "700": {
                "value": "#345B5A",
                "type": "color"
            },
            "800": {
                "value": "#253C3B",
                "type": "color"
            },
            "900": {
                "value": "#182525",
                "type": "color"
            }
        }
    }
}

Palettes built on #369E9B

Color Lab

Pairs with #369E9B

UI roles & guardrails

In real applications

Scales

Every model

Export