What font does xkcd use?

xkcd’s website uses one typeface: Lucida (headings and body text), a system font.

What are xkcd’s brand colours?

The main colours on xkcd.com are Light Steel Blue (#96A8C8), Slate Grey (#6E7B91), White (#FFFFFF), Cool Charcoal (#282B30), Cool Near Black (#071419) and Charcoal (#333333).

What colour is xkcd’s text and background?

Body text is #282B30 on a #96A8C8 background.

Where is xkcd’s logo from?

The logo shown in this guide was found on xkcd.com’s homepage. For official logo files and usage rules, check xkcd’s own brand or press page.

Is this xkcd’s official style guide?

No. SiteStyleGuide made it from xkcd.com’s public web pages on 30 October 2026, and isn’t affiliated with xkcd. Members can refresh a guide after 90 days to pick up changes.

xkcd Style Guide: Colours, Fonts & Logo

Identity & metadata

What browsers, search engines and social cards show before anyone reaches the page, from the homepage’s <head>.

Title &
description

Page title: xkcd: Gravitational Square Wave; ● 31 / 60 characters
Meta description: Missing; ▲ 0 / 160 characters
Site name: xkcd
og:title: Gravitational Square Wave

In search results

xkcdhttps://xkcd.com/

xkcd: Gravitational Square Wave

When shared

xkcd.com

Gravitational Square Wave

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Logo & favicons

Found as: image linked to the homepage. PNG, 185 × 83.

Logo

On white

On black

On Light Steel Blue

Favicons

1 found

32 px · ICO shortcut icon

xkcd: Gravitational Square Wave

Light browser tab

xkcd: Gravitational Square Wave

Dark browser tab

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Colour

Read from the site’s stylesheets and weighted by where each colour is used. Names are the nearest standard colour name. Click a swatch to copy its hex code.

Contrast is against the site’s text colour (#282B30) and white, using WCAG 2 ratios: 4.5 for body text, 3 for large text.

Colour

Balance

How much each colour is used

Light Steel Blue 51.4%
White 21.1%
Slate Grey 12.8%
Cool Charcoal 7.3%
Cool Near Black 3.7%
Charcoal 3.7%

By how often each colour appears in the site’s CSS, weighted by where (body, headings, buttons), not by area on the screen.

Neutrals

Text, backgrounds and structure

White

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 0

On text
14.20:1 AAA

On white
—

Background, text · .box, ul.comicNav li a
Cool Charcoal

HEX

RGB

HSL

OKLCH

CMYK
17 10 0 81

On text
—

On white
14.20:1 AAA

Text · #topLeft a
Cool Near Black

HEX

RGB

HSL

OKLCH

CMYK
72 20 0 90

On text
1.32:1 Fail

On white
18.70:1 AAA

Border · .box
Charcoal

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 80

On text
1.12:1 Fail

On white
12.63:1 AAA

Border · ul.comicNav li a

Colours

Brand colours and accents, most used first

Light Steel Blue

HEX

RGB

HSL

OKLCH

CMYK
25 16 0 22

On text
5.91:1 AA

On white
2.40:1 Fail

Background, text · body, a
Slate Grey

HEX

RGB

HSL

OKLCH

CMYK
24 15 0 43

On text
3.32:1 AA large

On white
4.28:1 AA large

Background, text · ul.comicNav li a, ul.comicNav a:hover

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Typography

Faces from Google Fonts are shown in the real thing. Others are licensed to the site, so they show in your device’s copy if you have one, or a stand-in if not.

Lucida

Aa 500

Lucida

System font, or not loaded on this page · weights 500 · body · shown in a stand-in if you don’t have it

ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
0123456789 ! ? & @ % $ – ’ “ ”

Type scale

From the site’s CSS

Body 16px weight 500 · Lucida

The quick brown fox jumps over the lazy dog.

Link 16px weight 600

Sizes in use

Most common across the site

21px2 rules
20pxline 120% · 1 rules
16px2 rules
12px1 rules

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Elements

The main button and link as the site’s CSS draws them, and the corner radii and shadows it uses most.

Elements

Link

Read our latest news today.

a · #96A8C8

Corner radius

12px · 1×
3px · 1×

Shadows

0 0 5px 0 gray

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Layout

Breakpoints from the site’s media queries and the widths its content is held to, with how often each appears.

Grid

No breakpoints or content widths could be read.

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Notes

Plain checks on what was found. Worth fixing if you look after this site.

Notes

● FineThe title is 31 characters, short enough to show in full in search results.
▲ CheckThere is no meta description, so search engines will pick text from the page.
▲ CheckThe page doesn’t declare its language (the lang attribute on <html>).

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Questions

Quick answers, from the same capture as the rest of this guide.

Questions

What font does xkcd use?: xkcd’s website uses one typeface: Lucida (headings and body text), a system font.
What are xkcd’s brand colours?: The main colours on xkcd.com are Light Steel Blue (#96A8C8), Slate Grey (#6E7B91), White (#FFFFFF), Cool Charcoal (#282B30), Cool Near Black (#071419) and Charcoal (#333333).
What colour is xkcd’s text and background?: Body text is #282B30 on a #96A8C8 background.
Where is xkcd’s logo from?: The logo shown in this guide was found on xkcd.com’s homepage. For official logo files and usage rules, check xkcd’s own brand or press page.
Is this xkcd’s official style guide?: No. SiteStyleGuide made it from xkcd.com’s public web pages on 30 October 2026, and isn’t affiliated with xkcd. Members can refresh a guide after 90 days to pick up changes.

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Design tokens

Everything above as CSS variables, ready to paste into a project. Members can download the tokens as files for Figma (Tokens Studio), Style Dictionary and Tailwind.

Tokens

xkcd-com-tokens.css

Download

Free with an account: sign up or sign in, and you’ll come straight back here.

/* xkcd.com design tokens, from SiteStyleGuide (https://sitestyleguide.com/xkcd.com) */
:root {
  /* Colours */
  --text: #282B30;
  --background: #96A8C8;
  --colour-white: #FFFFFF;
  --colour-cool-charcoal: #282B30;
  --colour-cool-near-black: #071419;
  --colour-charcoal: #333333;
  --colour-light-steel-blue: #96A8C8;
  --colour-slate-grey: #6E7B91;

  /* Typefaces */
  --font-body: 'Lucida', 'Helvetica', sans-serif;

  /* Type scale */
  --text-body: 16px;
  --text-a: 16px;

  /* Shape */
  --radius-1: 12px;
  --radius-2: 3px;
}

{
    "site": "xkcd.com",
    "source": "https://sitestyleguide.com/xkcd.com",
    "text": "#282B30",
    "background": "#96A8C8",
    "colours": [
        {
            "name": "White",
            "hex": "#FFFFFF",
            "rgb": [
                255,
                255,
                255
            ]
        },
        {
            "name": "Cool Charcoal",
            "hex": "#282B30",
            "rgb": [
                40,
                43,
                48
            ]
        },
        {
            "name": "Cool Near Black",
            "hex": "#071419",
            "rgb": [
                7,
                20,
                25
            ]
        },
        {
            "name": "Charcoal",
            "hex": "#333333",
            "rgb": [
                51,
                51,
                51
            ]
        },
        {
            "name": "Light Steel Blue",
            "hex": "#96A8C8",
            "rgb": [
                150,
                168,
                200
            ]
        },
        {
            "name": "Slate Grey",
            "hex": "#6E7B91",
            "rgb": [
                110,
                123,
                145
            ]
        }
    ],
    "fonts": [
        {
            "name": "Lucida",
            "stack": "Lucida, Helvetica, sans-serif",
            "weights": [
                500
            ],
            "source": "System font, or not loaded on this page"
        }
    ]
}

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Share

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Run xkcd.com?

Add the badge to your site

Link to this guide from your own site, so your team, designers and agencies can find your colours and fonts in one place.

<a href="https://sitestyleguide.com/xkcd.com" title="xkcd style guide on SiteStyleGuide"><img src="https://sitestyleguide.com/public/badge.svg" alt="View our style guide on SiteStyleGuide" width="200" height="44"></a>

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xkcdstyle guide

Title &
description

Logo

Favicons

Colour

Balance

Neutrals

White

Cool Charcoal

Cool Near Black

Charcoal

Colours

Light Steel Blue

Slate Grey

Lucida

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

PBS

mama.cn

Spotify for Creators

Weather Underground

xkcdstyle guide

Title &description

Logo

Favicons

Colour

Balance

Neutrals

White

Cool Charcoal

Cool Near Black

Charcoal

Colours

Light Steel Blue

Slate Grey

Lucida

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

Share

Run xkcd.com?

Similar colours

PBS

mama.cn

Spotify for Creators

Weather Underground

Title &
description