What color is #08243B?

#08243B is a very dark, vivid cyan-blue. In RGB it is rgb(8, 36, 59), and in HSL hsl(207, 76%, 13%).

Is #08243B accessible as text?

On white, #08243B has a contrast ratio of 15.84:1 (passes WCAG AA for body text); on black it is 1.33:1 (fails). For text placed on #08243B, use white for the best readability.

What is the closest Tailwind color to #08243B?

The nearest Tailwind CSS token is sky-950 (#052F4A).

What colors go well with #08243B?

#08243B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3A1F08. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #08243B below.

Is #08243B good for buttons?

#08243B works well for buttons and highlights, but use white text on #08243B — black text only reaches 1.33:1, below the 4.5:1 needed for normal-size labels.

Is #08243B the same as CSS midnightblue?

No — #08243B is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#08243B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #08243B

Not just a swatch — here's how #08243B works with other colors. Named schemes with #08243B in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #08243B Accent #A5C4C0 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Navy 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 #08243B Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Navy 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 #08243B Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #2A4359

Navy is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Navy.

Vintage Leather Lead · 5 colors

Lead #08243B Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233C

Navy 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 #08243B Secondary #3E4750 Support #969386 Ink #16140F

Navy 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 Navy carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #08243B 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 34/100

Cool

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

Softness 26/100

Low

Firm and assertive — carries weight and contrast.

Depth 72/100

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 28/100

Low

A faint retro warmth without tipping into sepia.

Luxury 74/100

High

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

Brand distinctiveness 21/100

Low

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

UI accent fit 20/100

Very low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 52/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #08243B

For UI

For branding

For interior

For fashion

People also use #08243B with

Castleton Green Navy Bistre 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 15.8:1. Use

Subtle surface Use #BAD5EB for cards and hover fills. Tint 80

Avoid beside #08133A — 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 #08243B 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: #08243B;
  --color-base-rgb: 8 36 59;
  --color-base-oklch: oklch(25.3% 0.055 247.1);
  --color-50: #F1F8FE;
  --color-100: #DAECFB;
  --color-200: #B7D9F5;
  --color-300: #87BDE9;
  --color-400: #5A9FD8;
  --color-500: #3781BD;
  --color-600: #326690;
  --color-700: #294A66;
  --color-800: #1E3243;
  --color-900: #142029;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F1F8FE',
    100: '#DAECFB',
    200: '#B7D9F5',
    300: '#87BDE9',
    400: '#5A9FD8',
    500: '#3781BD',
    600: '#326690',
    700: '#294A66',
    800: '#1E3243',
    900: '#142029',
  },
}

$base: #08243B;
$base-ink: #FFFFFF;
$base-50: #F1F8FE;
$base-100: #DAECFB;
$base-200: #B7D9F5;
$base-300: #87BDE9;
$base-400: #5A9FD8;
$base-500: #3781BD;
$base-600: #326690;
$base-700: #294A66;
$base-800: #1E3243;
$base-900: #142029;
$base-hover: #061D2F;
$base-subtle: #96C0E3;

{
    "color": {
        "base": {
            "value": "#08243B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F8FE",
                "type": "color"
            },
            "100": {
                "value": "#DAECFB",
                "type": "color"
            },
            "200": {
                "value": "#B7D9F5",
                "type": "color"
            },
            "300": {
                "value": "#87BDE9",
                "type": "color"
            },
            "400": {
                "value": "#5A9FD8",
                "type": "color"
            },
            "500": {
                "value": "#3781BD",
                "type": "color"
            },
            "600": {
                "value": "#326690",
                "type": "color"
            },
            "700": {
                "value": "#294A66",
                "type": "color"
            },
            "800": {
                "value": "#1E3243",
                "type": "color"
            },
            "900": {
                "value": "#142029",
                "type": "color"
            }
        }
    }
}