What color is #100B19?

#100B19 is a very dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(16, 11, 25), and in HSL hsl(261, 39%, 7%).

Is #100B19 accessible as text?

On white, #100B19 has a contrast ratio of 19.37:1 (passes WCAG AA for body text); on black it is 1.08:1 (fails). For text placed on #100B19, use white for the best readability.

What is the closest Tailwind color to #100B19?

The nearest Tailwind CSS token is zinc-950 (#09090B).

What colors go well with #100B19?

As a neutral, #100B19 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 #100B19 the same as CSS black?

No — #100B19 is not the CSS named color black, but black (#000000) is the closest CSS named color.

#100B19 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #100B19

Not just a swatch — here's how #100B19 works with other colors. Named schemes with #100B19 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #100B19 Secondary #7E4632 Surface #EDD8C2 Accent #355248 Anchor #582237

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 #100B19 Surface #F2E8DD Highlight #F8F0E7 Secondary #BDADA1 Ink #2C2724

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 #100B19 Anchor #141210 Accent #DA9856 Secondary #2A2731 Surface #F3ECE3

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 #F8F4EF Accent #100B19 Secondary #2F2E33 Support #9C9088 Ink #18140F

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.

Berry & Cream Lead · 5 colors

Lead #100B19 Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C7 Secondary #332B2F

Jet Black sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

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Color Lab

How #100B19 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 47/100

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 21/100

Low

Clean and current — no dusty, aged cast.

Luxury 78/100

High

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

Brand distinctiveness 11/100

Very low

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

UI accent fit 6/100

Very low

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

Surface fit 65/100

High

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

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #100B19

For UI

For branding

For interior

For fashion

People also use #100B19 with

Graphite Jet Black Gainsboro Russian Violet

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 19.4:1. Use

Subtle surface Use #CCC2DD for cards and hover fills. Tint 80

Avoid beside #140B19 — 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 #100B19 at work across the surfaces designers actually ship.

Website / UI

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:root {
  --color-base: #100B19;
  --color-base-rgb: 16 11 25;
  --color-base-oklch: oklch(16.4% 0.030 299.6);
  --color-50: #F6F4FB;
  --color-100: #E8E2F3;
  --color-200: #D1C6E6;
  --color-300: #B09ED1;
  --color-400: #8F79B9;
  --color-500: #70589D;
  --color-600: #5A4979;
  --color-700: #433857;
  --color-800: #2E273A;
  --color-900: #1D1924;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#F6F4FB',
    100: '#E8E2F3',
    200: '#D1C6E6',
    300: '#B09ED1',
    400: '#8F79B9',
    500: '#70589D',
    600: '#5A4979',
    700: '#433857',
    800: '#2E273A',
    900: '#1D1924',
  },
}

$base: #100B19;
$base-ink: #FFFFFF;
$base-50: #F6F4FB;
$base-100: #E8E2F3;
$base-200: #D1C6E6;
$base-300: #B09ED1;
$base-400: #8F79B9;
$base-500: #70589D;
$base-600: #5A4979;
$base-700: #433857;
$base-800: #2E273A;
$base-900: #1D1924;
$base-hover: #0D0914;
$base-subtle: #B2A3CD;

{
    "color": {
        "base": {
            "value": "#100B19",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E8E2F3",
                "type": "color"
            },
            "200": {
                "value": "#D1C6E6",
                "type": "color"
            },
            "300": {
                "value": "#B09ED1",
                "type": "color"
            },
            "400": {
                "value": "#8F79B9",
                "type": "color"
            },
            "500": {
                "value": "#70589D",
                "type": "color"
            },
            "600": {
                "value": "#5A4979",
                "type": "color"
            },
            "700": {
                "value": "#433857",
                "type": "color"
            },
            "800": {
                "value": "#2E273A",
                "type": "color"
            },
            "900": {
                "value": "#1D1924",
                "type": "color"
            }
        }
    }
}

Palettes built on #100B19

Color Lab

Pairs with #100B19

UI roles & guardrails

In real applications

Scales

Every model

Export