What color is #369BE3?

#369BE3 is a medium, vivid cyan-blue. In RGB it is rgb(54, 155, 227), and in HSL hsl(205, 76%, 55%).

Is #369BE3 accessible as text?

On white, #369BE3 has a contrast ratio of 3.02:1 (fails WCAG AA for body text); on black it is 6.95:1 (passes). For text placed on #369BE3, use black for the best readability.

What is the closest Tailwind color to #369BE3?

The nearest Tailwind CSS token is sky-500 (#00A6F4).

What colors go well with #369BE3?

#369BE3 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #E37E35. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #369BE3 below.

Is #369BE3 good for buttons?

#369BE3 works well for buttons and highlights, but use black text on #369BE3 — white text only reaches 3.02:1, below the 4.5:1 needed for normal-size labels.

Is #369BE3 the same as CSS cornflowerblue?

No — #369BE3 is not the CSS named color cornflowerblue, but cornflowerblue (#6495ED) is the closest CSS named color.

#369BE3 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #369BE3

Not just a swatch — here's how #369BE3 works with other colors. Named schemes with #369BE3 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #369BE3 Accent #A5C4C0 Surface #DEDBBF Secondary #9AA0A0 Anchor #20344A

Carolina 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 #369BE3 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Carolina 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 #369BE3 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #6CC1FF

Carolina 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 Carolina Blue.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #369BE3 Secondary #A5C3DD Support #969386 Ink #16140F

Carolina 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 Carolina Blue carrying the quiet middle.

Modern Café Dominant · 5 colors

Dominant #369BE3 Anchor #3B2924 Surface #EAE5D0 Accent #7A9E77 Secondary #393933

Carolina 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 #369BE3 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 9/100

Cool

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

Softness 50/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 34/100

Low

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 40/100

Moderate

Understated — leans refined without going austere.

Brand distinctiveness 54/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 73/100

High

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

Surface fit 25/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 67/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #369BE3

For UI

For branding

For interior

For fashion

People also use #369BE3 with

Turquoise Ultramarine Peru Gainsboro Charcoal

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 6.2:1. Use

Subtle surface Use #DBEAF5 for cards and hover fills. Tint 80

Avoid beside #3561E3 — 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 #369BE3 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: #369BE3;
  --color-base-rgb: 54 155 227;
  --color-base-oklch: oklch(66.5% 0.141 244.2);
  --color-50: #F1F8FE;
  --color-100: #DAEDFB;
  --color-200: #B7DBF5;
  --color-300: #87C0E9;
  --color-400: #5AA3D8;
  --color-500: #3786BD;
  --color-600: #326990;
  --color-700: #294D66;
  --color-800: #1E3343;
  --color-900: #142029;
  --color-on-base: #141310;
}

// tailwind.config.js
colors: {
  carolina-blue: {
    50: '#F1F8FE',
    100: '#DAEDFB',
    200: '#B7DBF5',
    300: '#87C0E9',
    400: '#5AA3D8',
    500: '#3786BD',
    600: '#326990',
    700: '#294D66',
    800: '#1E3343',
    900: '#142029',
  },
}

$base: #369BE3;
$base-ink: #141310;
$base-50: #F1F8FE;
$base-100: #DAEDFB;
$base-200: #B7DBF5;
$base-300: #87C0E9;
$base-400: #5AA3D8;
$base-500: #3786BD;
$base-600: #326990;
$base-700: #294D66;
$base-800: #1E3343;
$base-900: #142029;
$base-hover: #1B7EC5;
$base-subtle: #C9E0F0;

{
    "color": {
        "base": {
            "value": "#369BE3",
            "type": "color"
        },
        "onBase": {
            "value": "#141310",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F8FE",
                "type": "color"
            },
            "100": {
                "value": "#DAEDFB",
                "type": "color"
            },
            "200": {
                "value": "#B7DBF5",
                "type": "color"
            },
            "300": {
                "value": "#87C0E9",
                "type": "color"
            },
            "400": {
                "value": "#5AA3D8",
                "type": "color"
            },
            "500": {
                "value": "#3786BD",
                "type": "color"
            },
            "600": {
                "value": "#326990",
                "type": "color"
            },
            "700": {
                "value": "#294D66",
                "type": "color"
            },
            "800": {
                "value": "#1E3343",
                "type": "color"
            },
            "900": {
                "value": "#142029",
                "type": "color"
            }
        }
    }
}

Palettes built on #369BE3

Color Lab

Pairs with #369BE3

UI roles & guardrails

In real applications

Scales

Every model

Export