Is #100B06 accessible for body text on white?

#100B06 has a contrast ratio of 19.58:1 against white, which is sufficient for WCAG AA body text (4.5:1).

What is the complementary color of #100B06?

The complement of #100B06 is #060B10.

#100B06 Jet Black

rgb(16, 11, 6)

Color conversions

HEX: #100B06
RGB: rgb(16, 11, 6)
RGBA: rgba(16, 11, 6, 1)
HSL: hsl(30, 45%, 4%)
HSV / HSB: hsv(30, 63%, 6%)
CMYK: cmyk(0%, 31%, 62%, 94%)

Wide-gamut spaces

XYZ: xyz(0.366, 0.363, 0.223)
LAB: lab(3.28 0.88 2.46)
LCH: lch(3.28 2.61 70.27)
OKLAB: oklab(15.42% 0.0049 0.0133)
OKLCH: oklch(15.42% 0.0142 69.66)
Nearest name: Jet Black

Shades, tints and tones

Shades

Tints

Tones

Color harmonies

Complementary

The hue directly opposite on the color wheel. Maximum contrast, ideal for a single accent against a dominant brand color.

Analogous

Neighbouring hues that share a temperature. The safest harmony for calm, cohesive interfaces.

Triadic

Three hues evenly spaced 120 degrees apart. Vibrant and balanced — use one as dominant and the other two sparingly.

Split Complementary

The complement split into two adjacent hues. Nearly the contrast of complementary with noticeably less tension.

Square (Tetradic)

Four hues at 90-degree intervals. A rich set for illustration, data visualisation, and category coding.

Rectangle (Tetradic)

Two complementary pairs offset by 60 degrees. Gives two warm and two cool options in one system.

Monochromatic

A single hue across five lightness levels. The foundation of most UI scales and the most accessible starting point.

Similar colors

Closest matches

Opacity variations

#100b061a

#100b0633

#100b064d

#100b0666

#100b0680

#100b0699

#100b06b3

#100b06cc

#100b06e6

#100b06ff

On white

19.58:1

Body text AAA · Large text AA

On black

1.07:1

Body text Fail · Large text Fail

White-on-color contrast is 19.58:1.

Color blindness preview

Protanopia

No red cones — ~1% of men

Protanomaly

Reduced red sensitivity — ~1% of men

Deuteranopia

No green cones — ~1% of men

Deuteranomaly

Reduced green sensitivity — ~5% of men

Tritanopia

No blue cones — very rare

Tritanomaly

Reduced blue sensitivity — very rare

Achromatopsia

No color perception — ~1 in 30,000

Achromatomaly

Partial color perception — rare

Meaning, psychology and brand usage

Authority, and the safest text colour you can choose

Black reads as premium, definitive, and serious. True #000 on pure white is harsher than most eyes prefer at length — a near-black with a hint of the brand hue is easier to read and feels more considered.

Elegance and formality in Western markets, mourning in most, and authority nearly everywhere.

Carbon black from soot is among the oldest pigments in use. Ink-black printing set the typographic conventions that screen interfaces still inherit.

The default for luxury, fashion, and editorial. In dark interfaces avoid pure black surfaces — slightly lifted charcoals reduce halation around light text.

Common industries: Luxury, Fashion, Photography, Editorial, Audio. Pairs well with a single vivid accent, warm off-white for type, metallic tones for luxury.

Code exports

CSS

:root {
  --color-jet-black: #100b06;
  --color-jet-black-rgb: 16 11 6;
  --color-jet-black-hsl: 30 45% 4%;
  --color-jet-black-oklch: 15.42% 0.0142 69.66;
}

.element {
  color: #100b06;
  background-color: hsl(30, 45%, 4%);
  border: 1px solid rgb(16 11 6 / 40%);
}

SCSS

$jet-black: #100b06;
$jet-black-light: #888583;
$jet-black-dark: #080603;

.element {
  color: $jet-black;
  background: rgba($jet-black, 0.12);

  &:hover {
    color: darken($jet-black, 8%);
  }
}

LESS

@jet-black: #100b06;
@jet-black-light: lighten(@jet-black, 12%);
@jet-black-dark: darken(@jet-black, 12%);

.element {
  color: @jet-black;
  background: fade(@jet-black, 12%);
}

Tailwind CSS

/* Tailwind v4 — src/styles.css */
@theme {
  --color-jet-black-50: #cfcecd;
  --color-jet-black-100: #b7b6b4;
  --color-jet-black-200: #9f9d9b;
  --color-jet-black-300: #706d6a;
  --color-jet-black-400: #403c38;
  --color-jet-black-500: #100b06;
  --color-jet-black-600: #0e0a05;
  --color-jet-black-700: #0b0804;
  --color-jet-black-800: #080603;
  --color-jet-black-900: #050302;
}

/* Usage */
<div class="bg-jet-black-500 text-jet-black-50 ring-jet-black-600" />

/* Arbitrary value, no config needed */
<div class="bg-[#100b06]" />

Bootstrap

// Bootstrap 5 — _variables.scss (before importing bootstrap)
$jet-black: #100b06;
$primary: $jet-black;

$theme-colors: map-merge($theme-colors, (
  "jet-black": $jet-black
));

// Generates .text-jet-black, .bg-jet-black, .btn-jet-black
@import "bootstrap/scss/bootstrap";

Flutter

import 'package:flutter/material.dart';

const Color jetBlack = Color(0xFF100B06);

// As a MaterialColor swatch
const MaterialColor jetBlackSwatch = MaterialColor(0xFF100B06, <int, Color>{
  50: Color(0xFFCFCECD),
  100: Color(0xFFB7B6B4),
  200: Color(0xFF9F9D9B),
  300: Color(0xFF706D6A),
  400: Color(0xFF403C38),
  500: Color(0xFF100B06),
  600: Color(0xFF0E0A05),
  700: Color(0xFF0B0804),
  800: Color(0xFF080603),
  900: Color(0xFF050302),
});

Swift / SwiftUI

import SwiftUI

extension Color {
    /// #100b06 — Jet Black
    static let jetBlack = Color(
        red: 0.0627,
        green: 0.0431,
        blue: 0.0235
    )
}

// UIKit
extension UIColor {
    static let jetBlack = UIColor(
        red: 0.0627,
        green: 0.0431,
        blue: 0.0235,
        alpha: 1.0
    )
}

Android

<!-- res/values/colors.xml -->
<resources>
    <color name="jet_black">#100B06</color>
    <color name="jet_black_translucent">#80100B06</color>
</resources>

<!-- Jetpack Compose -->
val JetBlack = Color(0xFF100B06)

JavaScript

export const JET_BLACK = {
  hex: "#100b06",
  rgb: [16, 11, 6],
  hsl: [30, 45, 4],
  oklch: "oklch(15.42% 0.0142 69.66)",
};

JSON tokens

{
  "$schema": "https://design-tokens.org/schema.json",
  "jet-black": {
    "$type": "color",
    "$value": "#100b06",
    "$description": "Jet Black — generated by ColorVerse AI"
  }
}