What color is #11547E?

#11547E is a dark, vivid cyan-blue. In RGB it is rgb(17, 84, 126), and in HSL hsl(203, 76%, 28%).

Is #11547E accessible as text?

On white, #11547E has a contrast ratio of 8.10:1 (passes WCAG AA for body text); on black it is 2.59:1 (fails). For text placed on #11547E, use white for the best readability.

What is the closest Tailwind color to #11547E?

The nearest Tailwind CSS token is sky-800 (#00598A).

What colors go well with #11547E?

#11547E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7E3B11. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #11547E below.

Is #11547E good for buttons?

#11547E works well for buttons and highlights, but use white text on #11547E — black text only reaches 2.59:1, below the 4.5:1 needed for normal-size labels.

Is #11547E the same as CSS darkslategray?

No — #11547E is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#11547E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #11547E

Not just a swatch — here's how #11547E works with other colors. Named schemes with #11547E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #11547E Accent #A5C4C0 Surface #DEDABF Secondary #9AA0A0 Anchor #1F344A

Classic Blue opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Tech Product Signal · 5 colors

Signal #11547E Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #41779E

Classic 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 Classic Blue.

Vintage Leather Lead · 5 colors

Lead #11547E Secondary #7F4438 Surface #E2DDC0 Accent #375245 Anchor #57233C

Classic 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.

Berry & Cream Lead · 5 colors

Lead #11547E Surface #EEE9D6 Anchor #5A2246 Accent #E4C2CB Secondary #322B30

Classic Blue sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #11547E Secondary #667A89 Support #969386 Ink #16140F

Classic 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 Classic Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #11547E 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 38/100

Low

Middle-weight — neither delicate nor heavy.

Depth 57/100

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 48/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 63/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 25/100

Low

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

UI accent fit 76/100

High

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

Surface fit 29/100

Low

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

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #11547E

For UI

For branding

For interior

For fashion

People also use #11547E with

Persian Green Midnight Blue Walnut Brown Platinum Charcoal

UI roles & guardrails

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

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 8.1:1. Use

Subtle surface Use #C6DFEE for cards and hover fills. Tint 80

Avoid beside #11307E — 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 #11547E at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #11547E;
  --color-base-rgb: 17 84 126;
  --color-base-oklch: oklch(42.8% 0.094 242.5);
  --color-50: #F1F9FE;
  --color-100: #DAEEFB;
  --color-200: #B7DDF5;
  --color-300: #87C3E9;
  --color-400: #5AA8D8;
  --color-500: #378ABD;
  --color-600: #326C90;
  --color-700: #294F66;
  --color-800: #1E3543;
  --color-900: #142129;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  classic-blue: {
    50: '#F1F9FE',
    100: '#DAEEFB',
    200: '#B7DDF5',
    300: '#87C3E9',
    400: '#5AA8D8',
    500: '#378ABD',
    600: '#326C90',
    700: '#294F66',
    800: '#1E3543',
    900: '#142129',
  },
}

$base: #11547E;
$base-ink: #FFFFFF;
$base-50: #F1F9FE;
$base-100: #DAEEFB;
$base-200: #B7DDF5;
$base-300: #87C3E9;
$base-400: #5AA8D8;
$base-500: #378ABD;
$base-600: #326C90;
$base-700: #294F66;
$base-800: #1E3543;
$base-900: #142129;
$base-hover: #0E4365;
$base-subtle: #A8CFE8;

{
    "color": {
        "base": {
            "value": "#11547E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F9FE",
                "type": "color"
            },
            "100": {
                "value": "#DAEEFB",
                "type": "color"
            },
            "200": {
                "value": "#B7DDF5",
                "type": "color"
            },
            "300": {
                "value": "#87C3E9",
                "type": "color"
            },
            "400": {
                "value": "#5AA8D8",
                "type": "color"
            },
            "500": {
                "value": "#378ABD",
                "type": "color"
            },
            "600": {
                "value": "#326C90",
                "type": "color"
            },
            "700": {
                "value": "#294F66",
                "type": "color"
            },
            "800": {
                "value": "#1E3543",
                "type": "color"
            },
            "900": {
                "value": "#142129",
                "type": "color"
            }
        }
    }
}

Palettes built on #11547E

Color Lab

Pairs with #11547E

UI roles & guardrails

In real applications

Scales

Every model

Export