What color is #40100C?

#40100C is a very dark reddish brown. In RGB it is rgb(64, 16, 12), and in HSL hsl(5, 68%, 15%).

Is #40100C accessible as text?

On white, #40100C has a contrast ratio of 16.19:1 (passes WCAG AA for body text); on black it is 1.30:1 (fails). For text placed on #40100C, use white for the best readability.

What is the closest Tailwind color to #40100C?

The nearest Tailwind CSS token is orange-950 (#441306).

What colors go well with #40100C?

#40100C pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #0C3C40. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #40100C below.

Is #40100C good for buttons?

#40100C works well for buttons and highlights, but use white text on #40100C — black text only reaches 1.30:1, below the 4.5:1 needed for normal-size labels.

Is #40100C the same as CSS maroon?

No — #40100C is not the CSS named color maroon, but maroon (#800000) 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.

#40100C Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #40100C

Not just a swatch — here's how #40100C works with other colors. Named schemes with #40100C in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #40100C Secondary #B76325 Accent #777743 Surface #F4EBDD Anchor #3B2A21

This palette keeps Oxblood 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 #40100C Secondary #7B4927 Surface #EAD9C0 Accent #43503A Anchor #5A222E

Oxblood 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 #40100C Surface #E3CEA8 Secondary #B17958 Accent #98976D Anchor #3E2C21

Oxblood 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 #40100C Surface #F0E9DC Highlight #F7F1E7 Secondary #BBAEA0 Ink #2B2723

Oxblood 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 #40100C Secondary #54413E Support #9B9186 Ink #17140F

Oxblood 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 Oxblood carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #40100C 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 71/100

Warm

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

Softness 25/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 83/100

Very high

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

Vintage feel 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 76/100

High

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

Brand distinctiveness 29/100

Low

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

UI accent fit 23/100

Low

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

Surface fit 45/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 92/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #40100C

For UI

For branding

For interior

For fashion

People also use #40100C with

Tyrian Purple Bistre Bottle Green 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 16.2:1. Use

Subtle surface Use #E9C2BE for cards and hover fills. Tint 80

Avoid beside #40220C — 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 #40100C 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: #40100C;
  --color-base-rgb: 64 16 12;
  --color-base-oklch: oklch(25.5% 0.076 28.3);
  --color-50: #FDF3F2;
  --color-100: #F9DEDC;
  --color-200: #F2BFBB;
  --color-300: #E3938C;
  --color-400: #D16A61;
  --color-500: #B6493F;
  --color-600: #8B3E37;
  --color-700: #63312C;
  --color-800: #412320;
  --color-900: #281715;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  oxblood: {
    50: '#FDF3F2',
    100: '#F9DEDC',
    200: '#F2BFBB',
    300: '#E3938C',
    400: '#D16A61',
    500: '#B6493F',
    600: '#8B3E37',
    700: '#63312C',
    800: '#412320',
    900: '#281715',
  },
}

$base: #40100C;
$base-ink: #FFFFFF;
$base-50: #FDF3F2;
$base-100: #F9DEDC;
$base-200: #F2BFBB;
$base-300: #E3938C;
$base-400: #D16A61;
$base-500: #B6493F;
$base-600: #8B3E37;
$base-700: #63312C;
$base-800: #412320;
$base-900: #281715;
$base-hover: #330D0A;
$base-subtle: #E0A29C;

{
    "color": {
        "base": {
            "value": "#40100C",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FDF3F2",
                "type": "color"
            },
            "100": {
                "value": "#F9DEDC",
                "type": "color"
            },
            "200": {
                "value": "#F2BFBB",
                "type": "color"
            },
            "300": {
                "value": "#E3938C",
                "type": "color"
            },
            "400": {
                "value": "#D16A61",
                "type": "color"
            },
            "500": {
                "value": "#B6493F",
                "type": "color"
            },
            "600": {
                "value": "#8B3E37",
                "type": "color"
            },
            "700": {
                "value": "#63312C",
                "type": "color"
            },
            "800": {
                "value": "#412320",
                "type": "color"
            },
            "900": {
                "value": "#281715",
                "type": "color"
            }
        }
    }
}