What color is #0B2EA2?

#0B2EA2 is a dark, vivid blue. In RGB it is rgb(11, 46, 162), and in HSL hsl(226, 87%, 34%).

Is #0B2EA2 accessible as text?

On white, #0B2EA2 has a contrast ratio of 10.90:1 (passes WCAG AA for body text); on black it is 1.93:1 (fails). For text placed on #0B2EA2, use white for the best readability.

What is the closest Tailwind color to #0B2EA2?

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

What colors go well with #0B2EA2?

#0B2EA2 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #A27F0B. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #0B2EA2 below.

Is #0B2EA2 good for buttons?

#0B2EA2 works well for buttons and highlights, but use white text on #0B2EA2 — black text only reaches 1.93:1, below the 4.5:1 needed for normal-size labels.

Is #0B2EA2 the same as CSS mediumblue?

No — #0B2EA2 is not the CSS named color mediumblue, but mediumblue (#0000CD) is the closest CSS named color.

#0B2EA2 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #0B2EA2

Not just a swatch — here's how #0B2EA2 works with other colors. Named schemes with #0B2EA2 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #0B2EA2 Anchor #141210 Accent #ACAE53 Secondary #242933 Surface #F4ECE3

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.

Tech Product Signal · 5 colors

Signal #0B2EA2 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #2F58C0

Klein 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 Klein Blue.

Moody Editorial Color · 5 colors

Color #0B2EA2 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #1F0B5E

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 #0B2EA2 Accent #A5C4C2 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #0B2EA2 Secondary #54678D 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 #0B2EA2 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 9/100

Cool

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 67/100

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 21/100

Low

Clean and current — no dusty, aged cast.

Luxury 62/100

High

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

Brand distinctiveness 73/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 60/100

Moderate

Workable accent with care around contrast.

Surface fit 16/100

Very low

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

Print safety 65/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #0B2EA2

For UI

For branding

For interior

For fashion

People also use #0B2EA2 with

Carolina Blue Indigo Olive 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 10.9:1. Use

Subtle surface Use #C8D2F2 for cards and hover fills. Tint 80

Avoid beside #1A0BA2 — 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 #0B2EA2 at work across the surfaces designers actually ship.

Website / UI

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A working theme, generated in seconds.

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: #0B2EA2;
  --color-base-rgb: 11 46 162;
  --color-base-oklch: oklch(37.3% 0.189 264.6);
  --color-50: #F0F4FE;
  --color-100: #D8E1FD;
  --color-200: #B3C3FA;
  --color-300: #7F9AF0;
  --color-400: #5173E1;
  --color-500: #2E52C7;
  --color-600: #2B4497;
  --color-700: #24356B;
  --color-800: #1C2545;
  --color-900: #13182A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  klein-blue: {
    50: '#F0F4FE',
    100: '#D8E1FD',
    200: '#B3C3FA',
    300: '#7F9AF0',
    400: '#5173E1',
    500: '#2E52C7',
    600: '#2B4497',
    700: '#24356B',
    800: '#1C2545',
    900: '#13182A',
  },
}

$base: #0B2EA2;
$base-ink: #FFFFFF;
$base-50: #F0F4FE;
$base-100: #D8E1FD;
$base-200: #B3C3FA;
$base-300: #7F9AF0;
$base-400: #5173E1;
$base-500: #2E52C7;
$base-600: #2B4497;
$base-700: #24356B;
$base-800: #1C2545;
$base-900: #13182A;
$base-hover: #092582;
$base-subtle: #ABBBEE;

{
    "color": {
        "base": {
            "value": "#0B2EA2",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F4FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E1FD",
                "type": "color"
            },
            "200": {
                "value": "#B3C3FA",
                "type": "color"
            },
            "300": {
                "value": "#7F9AF0",
                "type": "color"
            },
            "400": {
                "value": "#5173E1",
                "type": "color"
            },
            "500": {
                "value": "#2E52C7",
                "type": "color"
            },
            "600": {
                "value": "#2B4497",
                "type": "color"
            },
            "700": {
                "value": "#24356B",
                "type": "color"
            },
            "800": {
                "value": "#1C2545",
                "type": "color"
            },
            "900": {
                "value": "#13182A",
                "type": "color"
            }
        }
    }
}

Palettes built on #0B2EA2

Color Lab

Pairs with #0B2EA2

UI roles & guardrails

In real applications

Scales

Every model

Export