What color is #11337C?

#11337C is a dark, vivid blue. In RGB it is rgb(17, 51, 124), and in HSL hsl(221, 76%, 28%).

Is #11337C accessible as text?

On white, #11337C has a contrast ratio of 11.74:1 (passes WCAG AA for body text); on black it is 1.79:1 (fails). For text placed on #11337C, use white for the best readability.

What is the closest Tailwind color to #11337C?

The nearest Tailwind CSS token is blue-900 (#1C398E).

What colors go well with #11337C?

#11337C pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #7E5B11. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #11337C below.

Is #11337C good for buttons?

#11337C works well for buttons and highlights, but use white text on #11337C — black text only reaches 1.79:1, below the 4.5:1 needed for normal-size labels.

Is #11337C the same as CSS midnightblue?

No — #11337C is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#11337C Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #11337C

Not just a swatch — here's how #11337C works with other colors. Named schemes with #11337C in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #11337C Anchor #141210 Accent #ADAE53 Secondary #242933 Surface #F0EEE3

Yale Blue carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #11337C Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #171245

Yale Blue adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Yale Blue.

Coastal Morning Lead · 5 colors

Lead #11337C Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

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

Vintage Leather Lead · 5 colors

Lead #11337C Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

Yale 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 #F8F4EF Accent #11337C Secondary #52607A Support #9D8F88 Ink #18140F

Yale 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 Yale Blue carrying the quiet middle.

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Color Lab

How #11337C 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 17/100

Cool

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

Softness 28/100

Low

Firm and assertive — carries weight and contrast.

Depth 67/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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

Brand distinctiveness 50/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 56/100

Moderate

Workable accent with care around contrast.

Surface fit 23/100

Low

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

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #11337C

For UI

For branding

For interior

For fashion

People also use #11337C with

Bondi Blue Midnight Blue Raw Umber Gainsboro 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 11.7:1. Use

Subtle surface Use #C6D3EE for cards and hover fills. Tint 80

Avoid beside #13117E — 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 #11337C 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: #11337C;
  --color-base-rgb: 17 51 124;
  --color-base-oklch: oklch(34.7% 0.130 262.8);
  --color-50: #F1F5FE;
  --color-100: #DAE5FB;
  --color-200: #B7CBF5;
  --color-300: #87A6E9;
  --color-400: #5A82D8;
  --color-500: #3762BD;
  --color-600: #325090;
  --color-700: #293C66;
  --color-800: #1E2A43;
  --color-900: #141B29;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F1F5FE',
    100: '#DAE5FB',
    200: '#B7CBF5',
    300: '#87A6E9',
    400: '#5A82D8',
    500: '#3762BD',
    600: '#325090',
    700: '#293C66',
    800: '#1E2A43',
    900: '#141B29',
  },
}

$base: #11337C;
$base-ink: #FFFFFF;
$base-50: #F1F5FE;
$base-100: #DAE5FB;
$base-200: #B7CBF5;
$base-300: #87A6E9;
$base-400: #5A82D8;
$base-500: #3762BD;
$base-600: #325090;
$base-700: #293C66;
$base-800: #1E2A43;
$base-900: #141B29;
$base-hover: #0E2965;
$base-subtle: #A8BCE8;

{
    "color": {
        "base": {
            "value": "#11337C",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F5FE",
                "type": "color"
            },
            "100": {
                "value": "#DAE5FB",
                "type": "color"
            },
            "200": {
                "value": "#B7CBF5",
                "type": "color"
            },
            "300": {
                "value": "#87A6E9",
                "type": "color"
            },
            "400": {
                "value": "#5A82D8",
                "type": "color"
            },
            "500": {
                "value": "#3762BD",
                "type": "color"
            },
            "600": {
                "value": "#325090",
                "type": "color"
            },
            "700": {
                "value": "#293C66",
                "type": "color"
            },
            "800": {
                "value": "#1E2A43",
                "type": "color"
            },
            "900": {
                "value": "#141B29",
                "type": "color"
            }
        }
    }
}

Palettes built on #11337C

Color Lab

Pairs with #11337C

UI roles & guardrails

In real applications

Scales

Every model

Export