What color is #100B0A?

#100B0A is a very dark low-chroma warm gray with a subtle warm cast. In RGB it is rgb(16, 11, 10), and in HSL hsl(10, 23%, 5%).

Is #100B0A accessible as text?

On white, #100B0A has a contrast ratio of 19.55:1 (passes WCAG AA for body text); on black it is 1.07:1 (fails). For text placed on #100B0A, use white for the best readability.

What is the closest Tailwind color to #100B0A?

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

What colors go well with #100B0A?

As a neutral, #100B0A pairs cleanly with white, off-white and light grays for text, and sits under accent hues like blue, violet, emerald or warm orange — use it as a dark surface or high-contrast base and let the accent carry the color.

Is #100B0A the same as CSS black?

No — #100B0A is not the CSS named color black, but black (#000000) is the closest CSS named color.

#100B0A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #100B0A

Not just a swatch — here's how #100B0A works with other colors. Named schemes with #100B0A in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #100B0A Surface #15161A Highlight #F4F6F8 Secondary #5F6473 Accent #2C2625

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 #100B0A Secondary #7B4927 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.

Japanese Sand Base · 5 colors

Base #100B0A Surface #F0E9DC 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.

Luxury Packaging Feature · 5 colors

Feature #100B0A Anchor #141210 Accent #D09E4D Secondary #322523 Surface #F2EDE3

Jet Black 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #100B0A Secondary #2E2C2C Support #9B9186 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.

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Color Lab

How #100B0A 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 53/100

Neutral

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

Softness 18/100

Very low

Firm and assertive — carries weight and contrast.

Depth 78/100

High

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

Naturalness 24/100

Low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 23/100

Low

Clean and current — no dusty, aged cast.

Luxury 76/100

High

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

Brand distinctiveness 3/100

Very low

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

UI accent fit 4/100

Very low

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

Surface fit 72/100

High

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

Print safety 99/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #100B0A

For UI

For branding

For interior

For fashion

People also use #100B0A with

Graphite Jet Black Gainsboro 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 19.5:1. Use

Subtle surface Use #D7C9C7 for cards and hover fills. Tint 80

Avoid beside #100D0A — 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 #100B0A 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: #100B0A;
  --color-base-rgb: 16 11 10;
  --color-base-oklch: oklch(15.6% 0.009 31.2);
  --color-50: #F9F6F5;
  --color-100: #F0E7E6;
  --color-200: #E0D0CD;
  --color-300: #C6AEA9;
  --color-400: #AC8C86;
  --color-500: #8F6D66;
  --color-600: #6F5753;
  --color-700: #51413E;
  --color-800: #362D2B;
  --color-900: #221D1B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#F9F6F5',
    100: '#F0E7E6',
    200: '#E0D0CD',
    300: '#C6AEA9',
    400: '#AC8C86',
    500: '#8F6D66',
    600: '#6F5753',
    700: '#51413E',
    800: '#362D2B',
    900: '#221D1B',
  },
}

$base: #100B0A;
$base-ink: #FFFFFF;
$base-50: #F9F6F5;
$base-100: #F0E7E6;
$base-200: #E0D0CD;
$base-300: #C6AEA9;
$base-400: #AC8C86;
$base-500: #8F6D66;
$base-600: #6F5753;
$base-700: #51413E;
$base-800: #362D2B;
$base-900: #221D1B;
$base-hover: #0D0908;
$base-subtle: #C3AEAA;

{
    "color": {
        "base": {
            "value": "#100B0A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F6F5",
                "type": "color"
            },
            "100": {
                "value": "#F0E7E6",
                "type": "color"
            },
            "200": {
                "value": "#E0D0CD",
                "type": "color"
            },
            "300": {
                "value": "#C6AEA9",
                "type": "color"
            },
            "400": {
                "value": "#AC8C86",
                "type": "color"
            },
            "500": {
                "value": "#8F6D66",
                "type": "color"
            },
            "600": {
                "value": "#6F5753",
                "type": "color"
            },
            "700": {
                "value": "#51413E",
                "type": "color"
            },
            "800": {
                "value": "#362D2B",
                "type": "color"
            },
            "900": {
                "value": "#221D1B",
                "type": "color"
            }
        }
    }
}

Palettes built on #100B0A

Color Lab

Pairs with #100B0A

UI roles & guardrails

In real applications

Scales

Every model

Export