What color is #24366B?

#24366B is a dark blue. In RGB it is rgb(36, 54, 107), and in HSL hsl(225, 50%, 28%).

Is #24366B accessible as text?

On white, #24366B has a contrast ratio of 11.57:1 (passes WCAG AA for body text); on black it is 1.81:1 (fails). For text placed on #24366B, use white for the best readability.

What is the closest Tailwind color to #24366B?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #24366B?

#24366B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #6B5924. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #24366B below.

Is #24366B good for buttons?

#24366B works well for buttons and highlights, but use white text on #24366B — black text only reaches 1.81:1, below the 4.5:1 needed for normal-size labels.

Is #24366B the same as CSS midnightblue?

No — #24366B is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#24366B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #24366B

Not just a swatch — here's how #24366B works with other colors. Named schemes with #24366B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #24366B Accent #A5C4C2 Surface #EAD5C0 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.

Luxury Packaging Feature · 5 colors

Feature #24366B Anchor #141210 Accent #DD965A Secondary #242933 Surface #F4ECE3

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 #24366B Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #1A163A

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.

Vintage Leather Lead · 5 colors

Lead #24366B Secondary #7F4535 Surface #EED7C2 Accent #365246 Anchor #58223A

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 #24366B Secondary #576073 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.

Build a working theme in the generator →

Color Lab

How #24366B 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 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 65/100

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 43/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 70/100

High

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

Brand distinctiveness 37/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 52/100

Moderate

Workable accent with care around contrast.

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 83/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #24366B

For UI

For branding

For interior

For fashion

People also use #24366B with

Teal Blue Russian Violet Coffee 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 11.6:1. Use

Subtle surface Use #CDD4E7 for cards and hover fills. Tint 80

Avoid beside #2A246B — 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 #24366B 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: #24366B;
  --color-base-rgb: 36 54 107;
  --color-base-oklch: oklch(34.8% 0.095 267.3);
  --color-50: #F3F5FC;
  --color-100: #E0E5F5;
  --color-200: #C2CCEB;
  --color-300: #97A7D8;
  --color-400: #7084C2;
  --color-500: #4E64A6;
  --color-600: #425180;
  --color-700: #333D5C;
  --color-800: #242A3C;
  --color-900: #181B25;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  yale-blue: {
    50: '#F3F5FC',
    100: '#E0E5F5',
    200: '#C2CCEB',
    300: '#97A7D8',
    400: '#7084C2',
    500: '#4E64A6',
    600: '#425180',
    700: '#333D5C',
    800: '#242A3C',
    900: '#181B25',
  },
}

$base: #24366B;
$base-ink: #FFFFFF;
$base-50: #F3F5FC;
$base-100: #E0E5F5;
$base-200: #C2CCEB;
$base-300: #97A7D8;
$base-400: #7084C2;
$base-500: #4E64A6;
$base-600: #425180;
$base-700: #333D5C;
$base-800: #242A3C;
$base-900: #181B25;
$base-hover: #1D2B56;
$base-subtle: #B3BDDD;

{
    "color": {
        "base": {
            "value": "#24366B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F5FC",
                "type": "color"
            },
            "100": {
                "value": "#E0E5F5",
                "type": "color"
            },
            "200": {
                "value": "#C2CCEB",
                "type": "color"
            },
            "300": {
                "value": "#97A7D8",
                "type": "color"
            },
            "400": {
                "value": "#7084C2",
                "type": "color"
            },
            "500": {
                "value": "#4E64A6",
                "type": "color"
            },
            "600": {
                "value": "#425180",
                "type": "color"
            },
            "700": {
                "value": "#333D5C",
                "type": "color"
            },
            "800": {
                "value": "#242A3C",
                "type": "color"
            },
            "900": {
                "value": "#181B25",
                "type": "color"
            }
        }
    }
}