What color is #052B8A?

#052B8A is a dark, vivid blue. In RGB it is rgb(5, 43, 138), and in HSL hsl(223, 93%, 28%).

Is #052B8A accessible as text?

On white, #052B8A has a contrast ratio of 12.22:1 (passes WCAG AA for body text); on black it is 1.72:1 (fails). For text placed on #052B8A, use white for the best readability.

What is the closest Tailwind color to #052B8A?

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

What colors go well with #052B8A?

#052B8A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #8A6405. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #052B8A below.

Is #052B8A good for buttons?

#052B8A works well for buttons and highlights, but use white text on #052B8A — black text only reaches 1.72:1, below the 4.5:1 needed for normal-size labels.

Is #052B8A the same as CSS midnightblue?

No — #052B8A is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#052B8A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #052B8A

Not just a swatch — here's how #052B8A works with other colors. Named schemes with #052B8A in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #052B8A Anchor #141210 Accent #ACAE53 Secondary #242933 Surface #F0EEE3

Klein 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 #052B8A Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #17094D

Klein 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 Klein Blue.

Coastal Morning Lead · 5 colors

Lead #052B8A Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #21344A

Klein 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 #052B8A Secondary #7F4536 Surface #EED7C2 Accent #375246 Anchor #57223A

Klein 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 #052B8A Secondary #4D5E7E Support #9D8F88 Ink #18140F

Klein 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 Klein Blue carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #052B8A 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 10/100

Cool

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 69/100

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 26/100

Low

A faint retro warmth without tipping into sepia.

Luxury 67/100

High

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

Brand distinctiveness 63/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 53/100

Moderate

Workable accent with care around contrast.

Surface fit 18/100

Very low

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

Print safety 70/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #052B8A

For UI

For branding

For interior

For fashion

People also use #052B8A 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 12.2:1. Use

Subtle surface Use #C2D0F3 for cards and hover fills. Tint 80

Avoid beside #0C058A — 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 #052B8A 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: #052B8A;
  --color-base-rgb: 5 43 138;
  --color-base-oklch: oklch(34.1% 0.162 263.4);
  --color-50: #F0F4FE;
  --color-100: #D8E2FD;
  --color-200: #B1C6FC;
  --color-300: #7C9EF4;
  --color-400: #4C78E6;
  --color-500: #2957CC;
  --color-600: #27489B;
  --color-700: #22376D;
  --color-800: #1A2747;
  --color-900: #12192B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  klein-blue: {
    50: '#F0F4FE',
    100: '#D8E2FD',
    200: '#B1C6FC',
    300: '#7C9EF4',
    400: '#4C78E6',
    500: '#2957CC',
    600: '#27489B',
    700: '#22376D',
    800: '#1A2747',
    900: '#12192B',
  },
}

$base: #052B8A;
$base-ink: #FFFFFF;
$base-50: #F0F4FE;
$base-100: #D8E2FD;
$base-200: #B1C6FC;
$base-300: #7C9EF4;
$base-400: #4C78E6;
$base-500: #2957CC;
$base-600: #27489B;
$base-700: #22376D;
$base-800: #1A2747;
$base-900: #12192B;
$base-hover: #04226E;
$base-subtle: #A1B7EF;

{
    "color": {
        "base": {
            "value": "#052B8A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F4FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E2FD",
                "type": "color"
            },
            "200": {
                "value": "#B1C6FC",
                "type": "color"
            },
            "300": {
                "value": "#7C9EF4",
                "type": "color"
            },
            "400": {
                "value": "#4C78E6",
                "type": "color"
            },
            "500": {
                "value": "#2957CC",
                "type": "color"
            },
            "600": {
                "value": "#27489B",
                "type": "color"
            },
            "700": {
                "value": "#22376D",
                "type": "color"
            },
            "800": {
                "value": "#1A2747",
                "type": "color"
            },
            "900": {
                "value": "#12192B",
                "type": "color"
            }
        }
    }
}

Palettes built on #052B8A

Color Lab

Pairs with #052B8A

UI roles & guardrails

In real applications

Scales

Every model

Export