What font does Mozilla use?

Mozilla’s website uses two typefaces: Mozilla Headline (headings), self-hosted; Mozilla Text (body text), self-hosted.

What are Mozilla’s brand colours?

The main colours on mozilla.org are Light Royal Blue (#0060DF), Crimson (#D70022), Dim Grey (#5E5E72), Deep Turquoise (#80EBFF), Deep Royal Blue (#0250BB) and Light Turquoise (#AAF2FF).

What colour is Mozilla’s text and background?

Body text is #000000 on a #FFFFFF background.

Where is Mozilla’s logo from?

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

Is this Mozilla’s official style guide?

No. SiteStyleGuide made it from mozilla.org’s public web pages on 21 October 2026, and isn’t affiliated with Mozilla. Members can refresh a guide after 90 days to pick up changes.

Mozilla 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: Mozilla - Internet for people, not profit (US); ● 46 / 60 characters
Meta description: We’re working to put control of the internet back in the hands of the people using it.; ● 86 / 160 characters
Site name: Mozilla
og:title: Mozilla - Internet for people, not profit (US)
og:description: We’re working to put control of the internet back in the hands of the people using it.
Language: en

In search results

Mozillahttps://www.mozilla.org/en-US/

Mozilla - Internet for people, not profit (US)

We’re working to put control of the internet back in the hands of the people using it.

When shared

mozilla.org

Mozilla - Internet for people, not profit (US)

We’re working to put control of the internet back in the hands of the people using it.

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Logo & favicons

Found as: image in the header. SVG, 984 × 235.

Logo

On white

On black

On Light Royal Blue

Favicons

3 found

196 px · PNG icon
180 px · PNG apple-touch-icon
64 px · ICO shortcut icon

Mozilla - Internet for people, not profit (US)

Light browser tab

Mozilla - Internet for people, not profit (US)

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 (#000000) and white, using WCAG 2 ratios: 4.5 for body text, 3 for large text.

Colour

Balance

How much each colour is used

White 41.4%
Black 27.5%
Light Royal Blue 6.3%
Crimson 3.9%
Cool Off White 3.5%
Dim Grey 3.2%
Deep Turquoise 3.2%
Cool Near Black 2.8%
Deep Royal Blue 2.4%
Light Turquoise 2.1%
Plum 2.1%
Medium Orchid 1.5%

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
21.00:1 AAA

On white
—

Background, text, border · body, .mzp-t-dark h1
Black

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 100

On text
—

On white
21.00:1 AAA

Text, background, border · body, .mzp-c-form-title
Cool Off White

HEX

RGB

HSL

OKLCH

CMYK
3 3 0 10

On text
15.97:1 AAA

On white
1.31:1 Fail

Background, text · .mzp-t-background-tertiary, .mzp-c-form.mzp-t-dark
Cool Near Black

HEX

RGB

HSL

OKLCH

CMYK
19 23 0 90

On text
1.15:1 Fail

On white
18.31:1 AAA

Text · .mzp-c-form, blockquote cite

Colours

Brand colours and accents, most used first

Light Royal Blue

HEX

RGB

HSL

OKLCH

CMYK
100 57 0 13

On text
3.74:1 AA large

On white
5.62:1 AA

Text, border, background · a, .mzp-c-button.mzp-t-product
Crimson

HEX

RGB

HSL

OKLCH

CMYK
0 100 84 16

On text
3.91:1 AA large

On white
5.37:1 AA

Background, border, text · .mzp-c-form-errors, .errorlist
Dim Grey

HEX

RGB

HSL

OKLCH

CMYK
18 18 0 55

On text
3.32:1 AA large

On white
6.33:1 AA

Text, border · input[list]::placeholder, input[list]:disabled
Deep Turquoise

HEX

RGB

HSL

OKLCH

CMYK
50 8 0 0

On text
15.25:1 AAA

On white
1.38:1 Fail

Text · .mzp-t-dark a, .error-msg a
Deep Royal Blue

HEX

RGB

HSL

OKLCH

CMYK
99 57 0 27

On text
2.87:1 Fail

On white
7.32:1 AAA

Text, border · --link-color-hover, a:active
Light Turquoise

HEX

RGB

HSL

OKLCH

CMYK
33 5 0 0

On text
16.85:1 AAA

On white
1.25:1 Fail

Text · --link-color-hover-inverse, .mzp-t-dark a:active
Plum

HEX

RGB

HSL

OKLCH

CMYK
15 25 0 0

On text
12.85:1 AAA

On white
1.63:1 Fail

Text · --link-color-visited-inverse, .mzp-t-dark a:where(:visited)
Medium Orchid

HEX

RGB

HSL

OKLCH

CMYK
18 77 0 12

On text
4.60:1 AA

On white
4.57:1 AA

Text · --link-color-visited, a:where(:visited)

Gradients

linear-gradient(180deg,#fff 0,#fff)
linear-gradient(180deg,#f9f9fa 0,#f9f9fa)
linear-gradient(to right, 0, 33%,transparent 33%,transparent 66%, 66%, 100%)

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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.

Mozilla Headline

Aa 400 Aa 700

Mozilla Headline

Self-hosted · weights 400, 600, 700 · headings, buttons · shown in a stand-in if you don’t have it

Aa 400 Aa 700

Mozilla Text

Self-hosted · weights 400, 600, 700 · headings, body, buttons · shown in a stand-in if you don’t have it

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

Type scale

From the site’s CSS

Heading 1 3rem · 48 px / 1.1 weight 600 · Mozilla Headline

Mozilla

Heading 2 2.375rem · 38 px / 1.1 weight 600 · Mozilla Headline

Mozilla - Internet for people, not profit (US)

Heading 3 1.75rem · 28 px / 1.1 weight 600 · Mozilla Headline

Mozilla - Internet for people, not profit (US)

Heading 4 / weight 600 · Mozilla Headline

Mozilla - Internet for people, not profit (US)

Heading 5 / weight 600 · Mozilla Headline

Mozilla - Internet for people, not profit (US)

Heading 6 / weight 600 · Mozilla Headline

Mozilla - Internet for people, not profit (US)

Body 1rem · 16 px / 1.25 Mozilla Text

We’re working to put control of the internet back in the hands of the people using it.

Paragraph 14px / 1.3 weight 600

We’re working to put control of the internet back in the hands of the people using it.

Button 1rem · 16 px / 1.25 Mozilla Text

Get started

Link 1rem · 16 px weight 600

Sizes in use

Most common across the site

32pxline 1.125 · 5 rules
28pxline 1.1 · 4 rules
24pxline 1.166 · 9 rules
20pxline 1.2 · 6 rules
18pxline 1.5 · 13 rules
16pxline 1.25 · 36 rules
14pxline 1.5 · 23 rules
12pxline 1.5 · 14 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 · #0060DF

Corner radius

4px · 9×
16px · 1×

Shadows

0 0 0 2px rgba(0,144,237,.5)
0 0 0 2px rgba(255,79,94,.5)
0 0 0 2px #80c8f6
0 5px 16px 2px rgba(29,17,51,.25)

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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

Breakpoints

320

480

768

1023

1024

1312

1440

On a scale of 0 to 1440 px.

Content widths (max-width)

1440 px

1152 px

928 px

800 px

688 px

432 px

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Notes

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

Notes

● FineThe title is 46 characters, short enough to show in full in search results.

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Questions

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

Questions

What font does Mozilla use?: Mozilla’s website uses two typefaces: Mozilla Headline (headings), self-hosted; Mozilla Text (body text), self-hosted.
What are Mozilla’s brand colours?: The main colours on mozilla.org are Light Royal Blue (#0060DF), Crimson (#D70022), Dim Grey (#5E5E72), Deep Turquoise (#80EBFF), Deep Royal Blue (#0250BB) and Light Turquoise (#AAF2FF).
What colour is Mozilla’s text and background?: Body text is #000000 on a #FFFFFF background.
Where is Mozilla’s logo from?: The logo shown in this guide was found on mozilla.org’s homepage. For official logo files and usage rules, check Mozilla’s own brand or press page.
Is this Mozilla’s official style guide?: No. SiteStyleGuide made it from mozilla.org’s public web pages on 21 October 2026, and isn’t affiliated with Mozilla. 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

mozilla-org-tokens.css

Download

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

/* mozilla.org design tokens, from SiteStyleGuide (https://sitestyleguide.com/mozilla.org) */
:root {
  /* Colours */
  --text: #000000;
  --background: #FFFFFF;
  --colour-white: #FFFFFF;
  --colour-black: #000000;
  --colour-cool-off-white: #E0E0E6;
  --colour-cool-near-black: #15141A;
  --colour-light-royal-blue: #0060DF;
  --colour-crimson: #D70022;
  --colour-dim-grey: #5E5E72;
  --colour-deep-turquoise: #80EBFF;
  --colour-deep-royal-blue: #0250BB;
  --colour-light-turquoise: #AAF2FF;
  --colour-plum: #D9BFFF;
  --colour-medium-orchid: #B833E1;
  --gradient-1: linear-gradient(180deg,#fff 0,#fff);
  --gradient-2: linear-gradient(180deg,#f9f9fa 0,#f9f9fa);
  --gradient-3: linear-gradient(to right, 0, 33%,transparent 33%,transparent 66%, 66%, 100%);

  /* Typefaces */
  --font-headings: 'Mozilla Headline', 'Helvetica Neue', 'Arial', 'X-LocaleSpecific', sans-serif;
  --font-buttons: 'Mozilla Headline', 'Helvetica Neue', 'Arial', 'X-LocaleSpecific', sans-serif;
  --font-body: 'Mozilla Text', 'Helvetica Neue', 'Arial', 'X-LocaleSpecific', sans-serif;

  /* Type scale */
  --text-h1: 3rem;
  --leading-h1: 1.1;
  --text-h2: 2.375rem;
  --leading-h2: 1.1;
  --text-h3: 1.75rem;
  --leading-h3: 1.1;
  --text-body: 1rem;
  --leading-body: 1.25;
  --text-p: 14px;
  --leading-p: 1.3;
  --text-button: 1rem;
  --leading-button: 1.25;
  --text-a: 1rem;

  /* Shape */
  --radius-1: 4px;
  --radius-2: 16px;

  /* Layout (breakpoints can’t be used in media queries as variables; they’re here for reference) */
  --breakpoint-1: 320px;
  --breakpoint-2: 480px;
  --breakpoint-3: 768px;
  --breakpoint-4: 1023px;
  --breakpoint-5: 1024px;
  --breakpoint-6: 1312px;
  --breakpoint-7: 1440px;
  --max-width-1: 1440px;
  --max-width-2: 1152px;
  --max-width-3: 928px;
  --max-width-4: 800px;
  --max-width-5: 688px;
  --max-width-6: 432px;
}

{
    "site": "mozilla.org",
    "source": "https://sitestyleguide.com/mozilla.org",
    "text": "#000000",
    "background": "#FFFFFF",
    "colours": [
        {
            "name": "White",
            "hex": "#FFFFFF",
            "rgb": [
                255,
                255,
                255
            ]
        },
        {
            "name": "Black",
            "hex": "#000000",
            "rgb": [
                0,
                0,
                0
            ]
        },
        {
            "name": "Cool Off White",
            "hex": "#E0E0E6",
            "rgb": [
                224,
                224,
                230
            ]
        },
        {
            "name": "Cool Near Black",
            "hex": "#15141A",
            "rgb": [
                21,
                20,
                26
            ]
        },
        {
            "name": "Light Royal Blue",
            "hex": "#0060DF",
            "rgb": [
                0,
                96,
                223
            ]
        },
        {
            "name": "Crimson",
            "hex": "#D70022",
            "rgb": [
                215,
                0,
                34
            ]
        },
        {
            "name": "Dim Grey",
            "hex": "#5E5E72",
            "rgb": [
                94,
                94,
                114
            ]
        },
        {
            "name": "Deep Turquoise",
            "hex": "#80EBFF",
            "rgb": [
                128,
                235,
                255
            ]
        },
        {
            "name": "Deep Royal Blue",
            "hex": "#0250BB",
            "rgb": [
                2,
                80,
                187
            ]
        },
        {
            "name": "Light Turquoise",
            "hex": "#AAF2FF",
            "rgb": [
                170,
                242,
                255
            ]
        },
        {
            "name": "Plum",
            "hex": "#D9BFFF",
            "rgb": [
                217,
                191,
                255
            ]
        },
        {
            "name": "Medium Orchid",
            "hex": "#B833E1",
            "rgb": [
                184,
                51,
                225
            ]
        }
    ],
    "fonts": [
        {
            "name": "Mozilla Headline",
            "stack": "Mozilla Headline, Helvetica Neue, Arial, X-LocaleSpecific, sans-serif",
            "weights": [
                400,
                600,
                700
            ],
            "source": "Self-hosted"
        },
        {
            "name": "Mozilla Text",
            "stack": "Mozilla Text, Helvetica Neue, Arial, X-LocaleSpecific, sans-serif",
            "weights": [
                400,
                600,
                700
            ],
            "source": "Self-hosted"
        }
    ]
}

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

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Mozillastyle guide

Title &
description

Logo

Favicons

Colour

Balance

Neutrals

White

Black

Cool Off White

Cool Near Black

Colours

Light Royal Blue

Crimson

Dim Grey

Deep Turquoise

Deep Royal Blue

Light Turquoise

Plum

Medium Orchid

Gradients

Mozilla Headline

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

cargocollective.com

agoda.com

エキサイトブログ

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Mozillastyle guide

Title &description

Logo

Favicons

Colour

Balance

Neutrals

White

Black

Cool Off White

Cool Near Black

Colours

Light Royal Blue

Crimson

Dim Grey

Deep Turquoise

Deep Royal Blue

Light Turquoise

Plum

Medium Orchid

Gradients

Mozilla Headline

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

Share

Run mozilla.org?

Similar colours

cargocollective.com

agoda.com

エキサイトブログ

Digg

Title &
description