What color is #240405?

#240405 is a very dark, vivid red. In RGB it is rgb(36, 4, 5), and in HSL hsl(358, 80%, 8%).

Is #240405 accessible as text?

On white, #240405 has a contrast ratio of 19.19:1 (passes WCAG AA for body text); on black it is 1.09:1 (fails). For text placed on #240405, use white for the best readability.

What is the closest Tailwind color to #240405?

The nearest Tailwind CSS token is taupe-950 (#0C0A09).

What colors go well with #240405?

#240405 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #042524. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #240405 below.

Is #240405 good for buttons?

#240405 works well for buttons and highlights, but use white text on #240405 — black text only reaches 1.09:1, below the 4.5:1 needed for normal-size labels.

Is #240405 the same as CSS black?

No — #240405 is not the CSS named color black, but black (#000000) is the closest CSS named color.

#240405 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #240405

Not just a swatch — here's how #240405 works with other colors. Named schemes with #240405 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #240405 Secondary #B76327 Accent #787742 Surface #F4EBDD Anchor #3B2A21

This palette keeps Jet Black as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Vintage Leather Lead · 5 colors

Lead #240405 Secondary #7B4928 Surface #EAD9C0 Accent #43503A Anchor #5A222E

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.

Desert Clay Center · 5 colors

Center #240405 Surface #E3CDA8 Secondary #B27958 Accent #98976D Anchor #3E2C21

Jet Black holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Japanese Sand Base · 5 colors

Base #240405 Surface #F0E8DC Highlight #F7F1E7 Secondary #BBAEA0 Ink #2B2723

Jet Black sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #240405 Secondary #3B2E2D Support #9B9087 Ink #17140F

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 #240405 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 65/100

Warm

Reads warm and advancing — inviting, energetic, draws the eye forward.

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 56/100

Moderate

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 80/100

High

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

Brand distinctiveness 22/100

Low

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

UI accent fit 8/100

Very low

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

Surface fit 57/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 94/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #240405

For UI

For branding

For interior

For fashion

People also use #240405 with

Deep Purple Graphite Gainsboro Espresso

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 #EBB5B7 for cards and hover fills. Tint 80

Avoid beside #250E04 — 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 #240405 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: #240405;
  --color-base-rgb: 36 4 5;
  --color-base-oklch: oklch(17.5% 0.056 22.8);
  --color-50: #FEF1F1;
  --color-100: #FCD9DA;
  --color-200: #F7B6B8;
  --color-300: #EB8487;
  --color-400: #DB575B;
  --color-500: #C13439;
  --color-600: #932F32;
  --color-700: #682729;
  --color-800: #441D1F;
  --color-900: #291414;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#FEF1F1',
    100: '#FCD9DA',
    200: '#F7B6B8',
    300: '#EB8487',
    400: '#DB575B',
    500: '#C13439',
    600: '#932F32',
    700: '#682729',
    800: '#441D1F',
    900: '#291414',
  },
}

$base: #240405;
$base-ink: #FFFFFF;
$base-50: #FEF1F1;
$base-100: #FCD9DA;
$base-200: #F7B6B8;
$base-300: #EB8487;
$base-400: #DB575B;
$base-500: #C13439;
$base-600: #932F32;
$base-700: #682729;
$base-800: #441D1F;
$base-900: #291414;
$base-hover: #1D0304;
$base-subtle: #E38E91;

{
    "color": {
        "base": {
            "value": "#240405",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF1F1",
                "type": "color"
            },
            "100": {
                "value": "#FCD9DA",
                "type": "color"
            },
            "200": {
                "value": "#F7B6B8",
                "type": "color"
            },
            "300": {
                "value": "#EB8487",
                "type": "color"
            },
            "400": {
                "value": "#DB575B",
                "type": "color"
            },
            "500": {
                "value": "#C13439",
                "type": "color"
            },
            "600": {
                "value": "#932F32",
                "type": "color"
            },
            "700": {
                "value": "#682729",
                "type": "color"
            },
            "800": {
                "value": "#441D1F",
                "type": "color"
            },
            "900": {
                "value": "#291414",
                "type": "color"
            }
        }
    }
}