What color is #182F52?

#182F52 is a dark blue. In RGB it is rgb(24, 47, 82), and in HSL hsl(216, 55%, 21%).

Is #182F52 accessible as text?

On white, #182F52 has a contrast ratio of 13.40:1 (passes WCAG AA for body text); on black it is 1.57:1 (fails). For text placed on #182F52, use white for the best readability.

What is the closest Tailwind color to #182F52?

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

What colors go well with #182F52?

#182F52 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #533B18. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #182F52 below.

Is #182F52 good for buttons?

#182F52 works well for buttons and highlights, but use white text on #182F52 — black text only reaches 1.57:1, below the 4.5:1 needed for normal-size labels.

Is #182F52 the same as CSS midnightblue?

No — #182F52 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#182F52 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #182F52

Not just a swatch — here's how #182F52 works with other colors. Named schemes with #182F52 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #182F52 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 #182F52 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 #182F52 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #394F71

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 #182F52 Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

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 #182F52 Secondary #4C5562 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 #182F52 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 32/100

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 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 71/100

High

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

Brand distinctiveness 27/100

Low

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

UI accent fit 34/100

Low

Workable accent with care around contrast.

Surface fit 44/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #182F52

For UI

For branding

For interior

For fashion

People also use #182F52 with

Myrtle Green 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 13.4:1. Use

Subtle surface Use #C7D4E7 for cards and hover fills. Tint 80

Avoid beside #181C53 — 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 #182F52 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: #182F52;
  --color-base-rgb: 24 47 82;
  --color-base-oklch: oklch(30.6% 0.070 258.6);
  --color-50: #F3F6FC;
  --color-100: #DFE8F6;
  --color-200: #C0D2ED;
  --color-300: #94B1DB;
  --color-400: #6B90C7;
  --color-500: #4A71AB;
  --color-600: #3F5A83;
  --color-700: #31435E;
  --color-800: #232E3E;
  --color-900: #171D26;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  prussian-blue: {
    50: '#F3F6FC',
    100: '#DFE8F6',
    200: '#C0D2ED',
    300: '#94B1DB',
    400: '#6B90C7',
    500: '#4A71AB',
    600: '#3F5A83',
    700: '#31435E',
    800: '#232E3E',
    900: '#171D26',
  },
}

$base: #182F52;
$base-ink: #FFFFFF;
$base-50: #F3F6FC;
$base-100: #DFE8F6;
$base-200: #C0D2ED;
$base-300: #94B1DB;
$base-400: #6B90C7;
$base-500: #4A71AB;
$base-600: #3F5A83;
$base-700: #31435E;
$base-800: #232E3E;
$base-900: #171D26;
$base-hover: #132642;
$base-subtle: #A9BEDC;

{
    "color": {
        "base": {
            "value": "#182F52",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F3F6FC",
                "type": "color"
            },
            "100": {
                "value": "#DFE8F6",
                "type": "color"
            },
            "200": {
                "value": "#C0D2ED",
                "type": "color"
            },
            "300": {
                "value": "#94B1DB",
                "type": "color"
            },
            "400": {
                "value": "#6B90C7",
                "type": "color"
            },
            "500": {
                "value": "#4A71AB",
                "type": "color"
            },
            "600": {
                "value": "#3F5A83",
                "type": "color"
            },
            "700": {
                "value": "#31435E",
                "type": "color"
            },
            "800": {
                "value": "#232E3E",
                "type": "color"
            },
            "900": {
                "value": "#171D26",
                "type": "color"
            }
        }
    }
}