What color is #182E48?

#182E48 is a dark blue. In RGB it is rgb(24, 46, 72), and in HSL hsl(213, 50%, 19%).

Is #182E48 accessible as text?

On white, #182E48 has a contrast ratio of 13.79:1 (passes WCAG AA for body text); on black it is 1.52:1 (fails). For text placed on #182E48, use white for the best readability.

What is the closest Tailwind color to #182E48?

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

What colors go well with #182E48?

#182E48 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #493318. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #182E48 below.

Is #182E48 good for buttons?

#182E48 works well for buttons and highlights, but use white text on #182E48 — black text only reaches 1.52:1, below the 4.5:1 needed for normal-size labels.

Is #182E48 the same as CSS midnightblue?

No — #182E48 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#182E48 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #182E48

Not just a swatch — here's how #182E48 works with other colors. Named schemes with #182E48 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #182E48 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Prussian 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 #182E48 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

Prussian 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 #182E48 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #394E67

Prussian 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 Prussian Blue.

Vintage Leather Lead · 5 colors

Lead #182E48 Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57233B

Prussian 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 #F6F4EF Accent #182E48 Secondary #4A525C Support #9D8F89 Ink #16140F

Prussian 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 Prussian Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #182E48 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 35/100

Cool

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

Softness 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 68/100

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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 70/100

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 29/100

Low

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

Surface fit 49/100

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 #182E48

For UI

For branding

For interior

For fashion

People also use #182E48 with

Feldgrau Russian Violet Espresso 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 13.8:1. Use

Subtle surface Use #C7D4E5 for cards and hover fills. Tint 80

Avoid beside #181E49 — 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 #182E48 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: #182E48;
  --color-base-rgb: 24 46 72;
  --color-base-oklch: oklch(29.7% 0.055 253.7);
  --color-50: #F3F7FC;
  --color-100: #E0EAF5;
  --color-200: #C2D4EB;
  --color-300: #97B4D8;
  --color-400: #7095C2;
  --color-500: #4E76A6;
  --color-600: #425E80;
  --color-700: #33455C;
  --color-800: #242F3C;
  --color-900: #181E25;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  prussian-blue: {
    50: '#F3F7FC',
    100: '#E0EAF5',
    200: '#C2D4EB',
    300: '#97B4D8',
    400: '#7095C2',
    500: '#4E76A6',
    600: '#425E80',
    700: '#33455C',
    800: '#242F3C',
    900: '#181E25',
  },
}

$base: #182E48;
$base-ink: #FFFFFF;
$base-50: #F3F7FC;
$base-100: #E0EAF5;
$base-200: #C2D4EB;
$base-300: #97B4D8;
$base-400: #7095C2;
$base-500: #4E76A6;
$base-600: #425E80;
$base-700: #33455C;
$base-800: #242F3C;
$base-900: #181E25;
$base-hover: #13253A;
$base-subtle: #A9BFD9;

{
    "color": {
        "base": {
            "value": "#182E48",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F7FC",
                "type": "color"
            },
            "100": {
                "value": "#E0EAF5",
                "type": "color"
            },
            "200": {
                "value": "#C2D4EB",
                "type": "color"
            },
            "300": {
                "value": "#97B4D8",
                "type": "color"
            },
            "400": {
                "value": "#7095C2",
                "type": "color"
            },
            "500": {
                "value": "#4E76A6",
                "type": "color"
            },
            "600": {
                "value": "#425E80",
                "type": "color"
            },
            "700": {
                "value": "#33455C",
                "type": "color"
            },
            "800": {
                "value": "#242F3C",
                "type": "color"
            },
            "900": {
                "value": "#181E25",
                "type": "color"
            }
        }
    }
}