What color is #040F22?

#040F22 is a very dark, vivid blue. In RGB it is rgb(4, 15, 34), and in HSL hsl(218, 79%, 7%).

Is #040F22 accessible as text?

On white, #040F22 has a contrast ratio of 19.15:1 (passes WCAG AA for body text); on black it is 1.10:1 (fails). For text placed on #040F22, use white for the best readability.

What is the closest Tailwind color to #040F22?

The nearest Tailwind CSS token is mist-950 (#090B0C).

What colors go well with #040F22?

#040F22 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #201604. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #040F22 below.

Is #040F22 good for buttons?

#040F22 works well for buttons and highlights, but use white text on #040F22 — black text only reaches 1.10:1, below the 4.5:1 needed for normal-size labels.

Is #040F22 the same as CSS midnightblue?

No — #040F22 is not the CSS named color midnightblue, but midnightblue (#191970) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#040F22 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #040F22

Not just a swatch — here's how #040F22 works with other colors. Named schemes with #040F22 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #040F22 Accent #A5C4C1 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Jet Black 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 #040F22 Secondary #AEB4B8 Surface #F1F2F0 Support #7D93A6 Anchor #2E3236

Jet Black 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 #040F22 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #1F2C3F

Jet Black is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Jet Black.

Vintage Leather Lead · 5 colors

Lead #040F22 Secondary #7F4537 Surface #E1DDC1 Accent #375246 Anchor #57223A

Jet Black 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 #040F22 Secondary #2C3138 Support #9D8F89 Ink #16140F

Jet Black 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 Jet Black carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #040F22 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 39/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 18/100

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 20/100

Low

Clean and current — no dusty, aged cast.

Luxury 79/100

High

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

Brand distinctiveness 17/100

Very low

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

UI accent fit 7/100

Very low

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

Surface fit 61/100

High

Calm enough for large fills — backgrounds, cards, sections.

Print safety 91/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #040F22

For UI

For branding

For interior

For fashion

People also use #040F22 with

Bottle Green Jet Black Graphite 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 19.2:1. Use

Subtle surface Use #B5C8EB for cards and hover fills. Tint 80

Avoid beside #040520 — 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 #040F22 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: #040F22;
  --color-base-rgb: 4 15 34;
  --color-base-oklch: oklch(17.0% 0.044 258.5);
  --color-50: #F1F6FE;
  --color-100: #DAE6FC;
  --color-200: #B6CEF6;
  --color-300: #85AAEB;
  --color-400: #5888DA;
  --color-500: #3568C0;
  --color-600: #305492;
  --color-700: #283F67;
  --color-800: #1D2B43;
  --color-900: #141C29;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#F1F6FE',
    100: '#DAE6FC',
    200: '#B6CEF6',
    300: '#85AAEB',
    400: '#5888DA',
    500: '#3568C0',
    600: '#305492',
    700: '#283F67',
    800: '#1D2B43',
    900: '#141C29',
  },
}

$base: #040F22;
$base-ink: #FFFFFF;
$base-50: #F1F6FE;
$base-100: #DAE6FC;
$base-200: #B6CEF6;
$base-300: #85AAEB;
$base-400: #5888DA;
$base-500: #3568C0;
$base-600: #305492;
$base-700: #283F67;
$base-800: #1D2B43;
$base-900: #141C29;
$base-hover: #030B1A;
$base-subtle: #8DACE3;

{
    "color": {
        "base": {
            "value": "#040F22",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1F6FE",
                "type": "color"
            },
            "100": {
                "value": "#DAE6FC",
                "type": "color"
            },
            "200": {
                "value": "#B6CEF6",
                "type": "color"
            },
            "300": {
                "value": "#85AAEB",
                "type": "color"
            },
            "400": {
                "value": "#5888DA",
                "type": "color"
            },
            "500": {
                "value": "#3568C0",
                "type": "color"
            },
            "600": {
                "value": "#305492",
                "type": "color"
            },
            "700": {
                "value": "#283F67",
                "type": "color"
            },
            "800": {
                "value": "#1D2B43",
                "type": "color"
            },
            "900": {
                "value": "#141C29",
                "type": "color"
            }
        }
    }
}

Palettes built on #040F22

Color Lab

Pairs with #040F22

UI roles & guardrails

In real applications

Scales

Every model

Export