What color is #366F8E?

#366F8E is a dark cyan-blue. In RGB it is rgb(54, 111, 142), and in HSL hsl(201, 45%, 38%).

Is #366F8E accessible as text?

On white, #366F8E has a contrast ratio of 5.50:1 (passes WCAG AA for body text); on black it is 3.82:1 (fails). For text placed on #366F8E, use white for the best readability.

What is the closest Tailwind color to #366F8E?

The nearest Tailwind CSS token is cyan-700 (#007595).

What colors go well with #366F8E?

#366F8E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8D5435. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #366F8E below.

Is #366F8E good for buttons?

#366F8E works well for buttons and highlights, but use white text on #366F8E — black text only reaches 3.82:1, below the 4.5:1 needed for normal-size labels.

Is #366F8E the same as CSS teal?

No — #366F8E is not the CSS named color teal, but teal (#008080) is the closest CSS named color.

#366F8E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #366F8E

Not just a swatch — here's how #366F8E works with other colors. Named schemes with #366F8E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #366F8E Accent #A6C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Teal 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 #366F8E Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Teal 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 #366F8E Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #6092B0

Teal 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 Teal Blue.

Vintage Leather Lead · 5 colors

Lead #366F8E Secondary #6E5216 Surface #E2DCC0 Accent #385245 Anchor #57233D

Teal Blue plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #366F8E Secondary #8294A0 Support #969386 Ink #16140F

Teal 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 Teal Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #366F8E 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 27/100

Cool

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

Softness 47/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 47/100

Moderate

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 54/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 21/100

Low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 85/100

Very high

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

Surface fit 31/100

Low

Usable as a tinted surface in measured doses.

Print safety 81/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #366F8E

For UI

For branding

For interior

For fashion

People also use #366F8E with

Jungle Green Dark Slate Blue Sienna Platinum Charcoal

UI roles & guardrails

Primary action Safe as a filled button with white label. AA

Body text Passes on white at 16px and above. Pass

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 5.5:1. Use

Subtle surface Use #D5E2EA for cards and hover fills. Tint 80

Avoid beside #35518D — 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 #366F8E 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: #366F8E;
  --color-base-rgb: 54 111 142;
  --color-base-oklch: oklch(51.7% 0.077 234.8);
  --color-50: #F4F8FB;
  --color-100: #E1EEF4;
  --color-200: #C4DCE8;
  --color-300: #9BC0D5;
  --color-400: #74A4BE;
  --color-500: #5386A2;
  --color-600: #45697D;
  --color-700: #354D5A;
  --color-800: #26343B;
  --color-900: #192025;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  teal-blue: {
    50: '#F4F8FB',
    100: '#E1EEF4',
    200: '#C4DCE8',
    300: '#9BC0D5',
    400: '#74A4BE',
    500: '#5386A2',
    600: '#45697D',
    700: '#354D5A',
    800: '#26343B',
    900: '#192025',
  },
}

$base: #366F8E;
$base-ink: #FFFFFF;
$base-50: #F4F8FB;
$base-100: #E1EEF4;
$base-200: #C4DCE8;
$base-300: #9BC0D5;
$base-400: #74A4BE;
$base-500: #5386A2;
$base-600: #45697D;
$base-700: #354D5A;
$base-800: #26343B;
$base-900: #192025;
$base-hover: #2B5870;
$base-subtle: #BFD4E0;

{
    "color": {
        "base": {
            "value": "#366F8E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4F8FB",
                "type": "color"
            },
            "100": {
                "value": "#E1EEF4",
                "type": "color"
            },
            "200": {
                "value": "#C4DCE8",
                "type": "color"
            },
            "300": {
                "value": "#9BC0D5",
                "type": "color"
            },
            "400": {
                "value": "#74A4BE",
                "type": "color"
            },
            "500": {
                "value": "#5386A2",
                "type": "color"
            },
            "600": {
                "value": "#45697D",
                "type": "color"
            },
            "700": {
                "value": "#354D5A",
                "type": "color"
            },
            "800": {
                "value": "#26343B",
                "type": "color"
            },
            "900": {
                "value": "#192025",
                "type": "color"
            }
        }
    }
}

Palettes built on #366F8E

Color Lab

Pairs with #366F8E

UI roles & guardrails

In real applications

Scales

Every model

Export