What color is #511B04?

#511B04 is a very dark, vivid red-orange. In RGB it is rgb(81, 27, 4), and in HSL hsl(18, 91%, 17%).

Is #511B04 accessible as text?

On white, #511B04 has a contrast ratio of 13.92:1 (passes WCAG AA for body text); on black it is 1.51:1 (fails). For text placed on #511B04, use white for the best readability.

What is the closest Tailwind color to #511B04?

The nearest Tailwind CSS token is amber-950 (#461901).

What colors go well with #511B04?

#511B04 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #043B53. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #511B04 below.

Is #511B04 good for buttons?

#511B04 works well for buttons and highlights, but use white text on #511B04 — black text only reaches 1.51:1, below the 4.5:1 needed for normal-size labels.

Is #511B04 the same as CSS maroon?

No — #511B04 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.

#511B04 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #511B04

Not just a swatch — here's how #511B04 works with other colors. Named schemes with #511B04 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #511B04 Secondary #B66422 Accent #767843 Surface #F4ECDD Anchor #3B2A20

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 #511B04 Secondary #7B4926 Surface #EAD9C0 Accent #42503B Anchor #5B222D

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 #511B04 Surface #E2CEA8 Secondary #B17956 Accent #97976E Anchor #3E2C20

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 #511B04 Surface #F0E9DC Highlight #F7F1E7 Secondary #BAAE9F 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 #511B04 Secondary #634E46 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 #511B04 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 76/100

Warm

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

Softness 28/100

Low

Firm and assertive — carries weight and contrast.

Depth 69/100

High

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

Naturalness 100/100

Very high

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

Vintage feel 62/100

High

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 73/100

High

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

Brand distinctiveness 34/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 37/100

Low

Workable accent with care around contrast.

Surface fit 39/100

Low

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #511B04

For UI

For branding

For interior

For fashion

People also use #511B04 with

Burgundy Army Green Prussian Blue Greige Taupe

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 13.9:1. Use

Subtle surface Use #F0CAB9 for cards and hover fills. Tint 80

Avoid beside #533604 — 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 #511B04 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

A working theme, generated in seconds.

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: #511B04;
  --color-base-rgb: 81 27 4;
  --color-base-oklch: oklch(30.3% 0.087 41.0);
  --color-50: #FEF5F0;
  --color-100: #FDE3D8;
  --color-200: #FBC7B1;
  --color-300: #F2A07D;
  --color-400: #E47B4E;
  --color-500: #CB5A2A;
  --color-600: #9A4A28;
  --color-700: #6C3923;
  --color-800: #46281B;
  --color-900: #2B1A12;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  oxblood: {
    50: '#FEF5F0',
    100: '#FDE3D8',
    200: '#FBC7B1',
    300: '#F2A07D',
    400: '#E47B4E',
    500: '#CB5A2A',
    600: '#9A4A28',
    700: '#6C3923',
    800: '#46281B',
    900: '#2B1A12',
  },
}

$base: #511B04;
$base-ink: #FFFFFF;
$base-50: #FEF5F0;
$base-100: #FDE3D8;
$base-200: #FBC7B1;
$base-300: #F2A07D;
$base-400: #E47B4E;
$base-500: #CB5A2A;
$base-600: #9A4A28;
$base-700: #6C3923;
$base-800: #46281B;
$base-900: #2B1A12;
$base-hover: #421603;
$base-subtle: #EBAE94;

{
    "color": {
        "base": {
            "value": "#511B04",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF5F0",
                "type": "color"
            },
            "100": {
                "value": "#FDE3D8",
                "type": "color"
            },
            "200": {
                "value": "#FBC7B1",
                "type": "color"
            },
            "300": {
                "value": "#F2A07D",
                "type": "color"
            },
            "400": {
                "value": "#E47B4E",
                "type": "color"
            },
            "500": {
                "value": "#CB5A2A",
                "type": "color"
            },
            "600": {
                "value": "#9A4A28",
                "type": "color"
            },
            "700": {
                "value": "#6C3923",
                "type": "color"
            },
            "800": {
                "value": "#46281B",
                "type": "color"
            },
            "900": {
                "value": "#2B1A12",
                "type": "color"
            }
        }
    }
}

Palettes built on #511B04

Color Lab

Pairs with #511B04

UI roles & guardrails

In real applications

Scales

Every model

Export