What color is #002E99?

#002E99 is a dark, vivid blue. In RGB it is rgb(0, 46, 153), and in HSL hsl(222, 100%, 30%).

Is #002E99 accessible as text?

On white, #002E99 has a contrast ratio of 11.35:1 (passes WCAG AA for body text); on black it is 1.85:1 (fails). For text placed on #002E99, use white for the best readability.

What is the closest Tailwind color to #002E99?

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

What colors go well with #002E99?

#002E99 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #996B00. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #002E99 below.

Is #002E99 good for buttons?

#002E99 works well for buttons and highlights, but use white text on #002E99 — black text only reaches 1.85:1, below the 4.5:1 needed for normal-size labels.

Is #002E99 the same as CSS darkblue?

No — #002E99 is not the CSS named color darkblue, but darkblue (#00008B) is the closest CSS named color.

#002E99 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #002E99

Not just a swatch — here's how #002E99 works with other colors. Named schemes with #002E99 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #002E99 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 #002E99 Anchor #2A2A2E Secondary #6E6E74 Surface #E9E7DA Accent #1B0B58

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 #002E99 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 #002E99 Secondary #7F4536 Surface #E1DDC1 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 #002E99 Secondary #516488 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.

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Color Lab

How #002E99 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 8/100

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 23/100

Low

Clean and current — no dusty, aged cast.

Luxury 64/100

High

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

Brand distinctiveness 69/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 58/100

Moderate

Workable accent with care around contrast.

Surface fit 17/100

Very low

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

Print safety 66/100

High

Prints close, with a slight loss of vibrancy.

Pairs with #002E99

For UI

For branding

For interior

For fashion

People also use #002E99 with

Light Sea Green Zaffre 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 11.3:1. Use

Subtle surface Use #C2D1F5 for cards and hover fills. Tint 80

Avoid beside #050099 — 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 #002E99 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: #002E99;
  --color-base-rgb: 0 46 153;
  --color-base-oklch: oklch(36.1% 0.179 262.8);
  --color-50: #F0F5FE;
  --color-100: #D8E3FD;
  --color-200: #B1C7FC;
  --color-300: #779EF8;
  --color-400: #4678EC;
  --color-500: #2257D2;
  --color-600: #23489F;
  --color-700: #1F3770;
  --color-800: #182748;
  --color-900: #11192C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  klein-blue: {
    50: '#F0F5FE',
    100: '#D8E3FD',
    200: '#B1C7FC',
    300: '#779EF8',
    400: '#4678EC',
    500: '#2257D2',
    600: '#23489F',
    700: '#1F3770',
    800: '#182748',
    900: '#11192C',
  },
}

$base: #002E99;
$base-ink: #FFFFFF;
$base-50: #F0F5FE;
$base-100: #D8E3FD;
$base-200: #B1C7FC;
$base-300: #779EF8;
$base-400: #4678EC;
$base-500: #2257D2;
$base-600: #23489F;
$base-700: #1F3770;
$base-800: #182748;
$base-900: #11192C;
$base-hover: #00257A;
$base-subtle: #A1B9F2;

{
    "color": {
        "base": {
            "value": "#002E99",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F5FE",
                "type": "color"
            },
            "100": {
                "value": "#D8E3FD",
                "type": "color"
            },
            "200": {
                "value": "#B1C7FC",
                "type": "color"
            },
            "300": {
                "value": "#779EF8",
                "type": "color"
            },
            "400": {
                "value": "#4678EC",
                "type": "color"
            },
            "500": {
                "value": "#2257D2",
                "type": "color"
            },
            "600": {
                "value": "#23489F",
                "type": "color"
            },
            "700": {
                "value": "#1F3770",
                "type": "color"
            },
            "800": {
                "value": "#182748",
                "type": "color"
            },
            "900": {
                "value": "#11192C",
                "type": "color"
            }
        }
    }
}

Palettes built on #002E99

Color Lab

Pairs with #002E99

UI roles & guardrails

In real applications

Scales

Every model

Export