What color is #040E4A?

#040E4A is a very dark, vivid blue. In RGB it is rgb(4, 14, 74), and in HSL hsl(231, 90%, 15%).

Is #040E4A accessible as text?

On white, #040E4A has a contrast ratio of 18.00:1 (passes WCAG AA for body text); on black it is 1.17:1 (fails). For text placed on #040E4A, use white for the best readability.

What is the closest Tailwind color to #040E4A?

The nearest Tailwind CSS token is indigo-950 (#1E1A4D).

What colors go well with #040E4A?

#040E4A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #493E04. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #040E4A below.

Is #040E4A good for buttons?

#040E4A works well for buttons and highlights, but use white text on #040E4A — black text only reaches 1.17:1, below the 4.5:1 needed for normal-size labels.

Is #040E4A the same as CSS midnightblue?

No — #040E4A is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color.

#040E4A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #040E4A

Not just a swatch — here's how #040E4A works with other colors. Named schemes with #040E4A in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #040E4A Anchor #141210 Accent #DD965A Secondary #242933 Surface #F4ECE3

Navy 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 #040E4A Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DB Accent #03001A

Navy 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 Navy.

Coastal Morning Lead · 5 colors

Lead #040E4A Accent #A5C4C2 Surface #EAD5C0 Secondary #9AA0A1 Anchor #21344A

Navy 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 #040E4A Secondary #7F4536 Surface #EED7C2 Accent #365246 Anchor #58223A

Navy 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 #040E4A Secondary #323B4F Support #9D8F88 Ink #18140F

Navy 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 Navy carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #040E4A 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 24/100

Cool

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

Softness 19/100

Very low

Firm and assertive — carries weight and contrast.

Depth 79/100

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 28/100

Low

A faint retro warmth without tipping into sepia.

Luxury 83/100

Very high

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

Brand distinctiveness 42/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 17/100

Very low

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

Surface fit 38/100

Low

Usable as a tinted surface in measured doses.

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #040E4A

For UI

For branding

For interior

For fashion

People also use #040E4A with

Classic Blue Deep Purple Espresso Gainsboro Prussian Blue

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 18.0:1. Use

Subtle surface Use #B8C0F0 for cards and hover fills. Tint 80

Avoid beside #100449 — 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 #040E4A 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: #040E4A;
  --color-base-rgb: 4 14 74;
  --color-base-oklch: oklch(21.2% 0.110 266.3);
  --color-50: #F0F2FE;
  --color-100: #D8DDFD;
  --color-200: #B2BDFB;
  --color-300: #7E8FF2;
  --color-400: #4F65E3;
  --color-500: #2B43CA;
  --color-600: #293A99;
  --color-700: #232E6C;
  --color-800: #1B2146;
  --color-900: #12162B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  navy: {
    50: '#F0F2FE',
    100: '#D8DDFD',
    200: '#B2BDFB',
    300: '#7E8FF2',
    400: '#4F65E3',
    500: '#2B43CA',
    600: '#293A99',
    700: '#232E6C',
    800: '#1B2146',
    900: '#12162B',
  },
}

$base: #040E4A;
$base-ink: #FFFFFF;
$base-50: #F0F2FE;
$base-100: #D8DDFD;
$base-200: #B2BDFB;
$base-300: #7E8FF2;
$base-400: #4F65E3;
$base-500: #2B43CA;
$base-600: #293A99;
$base-700: #232E6C;
$base-800: #1B2146;
$base-900: #12162B;
$base-hover: #030B3A;
$base-subtle: #919FEA;

{
    "color": {
        "base": {
            "value": "#040E4A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F0F2FE",
                "type": "color"
            },
            "100": {
                "value": "#D8DDFD",
                "type": "color"
            },
            "200": {
                "value": "#B2BDFB",
                "type": "color"
            },
            "300": {
                "value": "#7E8FF2",
                "type": "color"
            },
            "400": {
                "value": "#4F65E3",
                "type": "color"
            },
            "500": {
                "value": "#2B43CA",
                "type": "color"
            },
            "600": {
                "value": "#293A99",
                "type": "color"
            },
            "700": {
                "value": "#232E6C",
                "type": "color"
            },
            "800": {
                "value": "#1B2146",
                "type": "color"
            },
            "900": {
                "value": "#12162B",
                "type": "color"
            }
        }
    }
}

Palettes built on #040E4A

Color Lab

Pairs with #040E4A

UI roles & guardrails

In real applications

Scales

Every model

Export