What font does Federation of American Scientists use?

Federation of American Scientists’s website uses two typefaces: FraktionMono (headings), self-hosted; StabilGrotesk (body text), self-hosted.

What are Federation of American Scientists’s brand colours?

The main colours on fas.org are Royal Blue (#255979), Fire Brick (#C02B0A), Medium Aqua Marine (#36BD96), Light Off White (#F4F4F4), Black (#000000) and Cool Charcoal (#32373C).

What colour is Federation of American Scientists’s text and background?

Body text is #000000 on a #F4F4F4 background.

Where is Federation of American Scientists’s logo from?

The logo shown in this guide was found on fas.org’s homepage. For official logo files and usage rules, check Federation of American Scientists’s own brand or press page.

Is this Federation of American Scientists’s official style guide?

No. SiteStyleGuide made it from fas.org’s public web pages on 27 October 2026, and isn’t affiliated with Federation of American Scientists. Members can refresh a guide after 90 days to pick up changes.

Federation of American Scientists 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: Home - Federation of American Scientists; ● 40 / 60 characters
Meta description: FAS envisions a world where cutting-edge science, technology, ideas and talent are deployed to solve the biggest challenges of our time.; ● 136 / 160 characters
Site name: Federation of American Scientists
og:title: Home - Federation of American Scientists
og:description: FAS envisions a world where cutting-edge science, technology, ideas and talent are deployed to solve the biggest challenges of our time.
Language: en-US

In search results

Federation of American Scientistshttps://fas.org/

Home - Federation of American Scientists

FAS envisions a world where cutting-edge science, technology, ideas and talent are deployed to solve the biggest challenges of our time.

When shared

The image Federation of American Scientists shares with links

fas.org

Home - Federation of American Scientists

FAS envisions a world where cutting-edge science, technology, ideas and talent are deployed to solve the bigg…

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Logo & favicons

Found as: schema.org logo. JPG, 500 × 194.

Logo

On white

On black

On Royal Blue

Favicons

1 found

32 px · ICO icon

Home - Federation of American Scientists

Light browser tab

Home - Federation of American Scientists

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

Royal Blue 38.7%
Light Off White 31.1%
Black 25%
Fire Brick 2.1%
Cool Charcoal 1.2%
Medium Aqua Marine 1.1%
Deep Off White 0.8%

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

Light Off White

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 4

On text
19.09:1 AAA

On white
1.10:1 Fail

Background, text, border · body, .site-header
Black

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 100

On text
—

On white
21.00:1 AAA

Text, background, border · body, .gform_wrapper.gravity-theme.gform-theme--no-framework input[type=button]
Cool Charcoal

HEX

RGB

HSL

OKLCH

CMYK
17 8 0 76

On text
1.75:1 Fail

On white
12.02:1 AAA

Background · .wp-block-button__link, .wp-block-file__button
Deep Off White

HEX

RGB

HSL

OKLCH

CMYK
0 0 0 13

On text
15.46:1 AAA

On white
1.36:1 Fail

Background · --border-color, --wp-editor-canvas-background

Colours

Brand colours and accents, most used first

Royal Blue

HEX

RGB

HSL

OKLCH

CMYK
69 26 0 53

On text
2.78:1 Fail

On white
7.54:1 AAA

Text, background, graphic · .site-footer__careers-panel .block-header__heading-title, .site-footer__contact-panel .site-footer__cta-flag-title
Fire Brick

HEX

RGB

HSL

OKLCH

CMYK
0 78 95 25

On text
3.59:1 AA large

On white
5.85:1 AA

Text, border · .gform_wrapper.gravity-theme.gform-theme--no-framework .gfield_error input[type=, .gform_wrapper.gravity-theme.gform-theme--no-framework .gfield_error .gfield_req
Medium Aqua Marine

HEX

RGB

HSL

OKLCH

CMYK
71 0 21 26

On text
8.88:1 AAA

On white
2.37:1 Fail

Background · .single-event__hero-category, .events-archive__hero-category

Gradients

linear-gradient(to left,#00000080,#0000)
linear-gradient(to right,#00000080,#0000)
linear-gradient(to top,#00000080,#0000)

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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.

FraktionMono

Aa 400 Aa 700

FraktionMono

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

Aa 100 Aa 700

StabilGrotesk

Self-hosted · weights 100, 300, 400, 700 · body · shown in a stand-in if you don’t have it

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

Type scale

From the site’s CSS

Heading 1 2rem · 32 px / 1 weight 700 · capitalize

Federation of American Scientists

Heading 2 1.3125rem · 21 px / 1.1 weight 700 · capitalize

Home - Federation of American Scientists

Heading 3 1.3125rem · 21 px / 1 weight 700

Home - Federation of American Scientists

Heading 4 1.125rem · 18 px / 1 weight 700

Home - Federation of American Scientists

Body 1rem · 16 px / 1.6 weight 400 · StabilGrotesk

FAS envisions a world where cutting-edge science, technology, ideas and talent are deployed to solve the biggest challenges of our time.

Sizes in use

Most common across the site

42pxline 1 · 6 rules
32pxline 1 · 8 rules
21pxline 1.1 · 6 rules
20pxline 1 · 7 rules
18pxline 1.1 · 10 rules
16pxline 1.6 · 14 rules
12pxline 1 · 62 rules
11px2 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

Button

Get started

.gform_wrapper.gravity-theme.gform-theme--no-framework input[type=button] · #000000

Corner radius

50% · 2×
2px · 1×
9999px · 1×

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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

460

660

720

767

980

1024

1120

1200

On a scale of 0 to 1440 px.

Content widths (max-width)

1440 px

645 px

560 px

555 px

547 px

335 px

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Notes

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

Notes

● FineThe title is 40 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 Federation of American Scientists use?: Federation of American Scientists’s website uses two typefaces: FraktionMono (headings), self-hosted; StabilGrotesk (body text), self-hosted.
What are Federation of American Scientists’s brand colours?: The main colours on fas.org are Royal Blue (#255979), Fire Brick (#C02B0A), Medium Aqua Marine (#36BD96), Light Off White (#F4F4F4), Black (#000000) and Cool Charcoal (#32373C).
What colour is Federation of American Scientists’s text and background?: Body text is #000000 on a #F4F4F4 background.
Where is Federation of American Scientists’s logo from?: The logo shown in this guide was found on fas.org’s homepage. For official logo files and usage rules, check Federation of American Scientists’s own brand or press page.
Is this Federation of American Scientists’s official style guide?: No. SiteStyleGuide made it from fas.org’s public web pages on 27 October 2026, and isn’t affiliated with Federation of American Scientists. 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

fas-org-tokens.css

Download

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

/* fas.org design tokens, from SiteStyleGuide (https://sitestyleguide.com/fas.org) */
:root {
  /* Colours */
  --text: #000000;
  --background: #F4F4F4;
  --colour-light-off-white: #F4F4F4;
  --colour-black: #000000;
  --colour-cool-charcoal: #32373C;
  --colour-deep-off-white: #DDDDDD;
  --colour-royal-blue: #255979;
  --colour-fire-brick: #C02B0A;
  --colour-medium-aqua-marine: #36BD96;
  --gradient-1: linear-gradient(to left,#00000080,#0000);
  --gradient-2: linear-gradient(to right,#00000080,#0000);
  --gradient-3: linear-gradient(to top,#00000080,#0000);

  /* Typefaces */
  --font-headings: 'FraktionMono', serif;
  --font-buttons: 'FraktionMono', serif;
  --font-body: 'StabilGrotesk', sans-serif;

  /* Type scale */
  --text-h1: 2rem;
  --leading-h1: 1;
  --text-h2: 1.3125rem;
  --leading-h2: 1.1;
  --text-h3: 1.3125rem;
  --leading-h3: 1;
  --text-h4: 1.125rem;
  --leading-h4: 1;
  --text-body: 1rem;
  --leading-body: 1.6;

  /* Shape */
  --radius-1: 50%;
  --radius-2: 2px;
  --radius-3: 9999px;

  /* Layout (breakpoints can’t be used in media queries as variables; they’re here for reference) */
  --breakpoint-1: 460px;
  --breakpoint-2: 660px;
  --breakpoint-3: 720px;
  --breakpoint-4: 767px;
  --breakpoint-5: 980px;
  --breakpoint-6: 1024px;
  --breakpoint-7: 1120px;
  --breakpoint-8: 1200px;
  --max-width-1: 1440px;
  --max-width-2: 645px;
  --max-width-3: 560px;
  --max-width-4: 555px;
  --max-width-5: 547px;
  --max-width-6: 335px;
}

{
    "site": "fas.org",
    "source": "https://sitestyleguide.com/fas.org",
    "text": "#000000",
    "background": "#F4F4F4",
    "colours": [
        {
            "name": "Light Off White",
            "hex": "#F4F4F4",
            "rgb": [
                244,
                244,
                244
            ]
        },
        {
            "name": "Black",
            "hex": "#000000",
            "rgb": [
                0,
                0,
                0
            ]
        },
        {
            "name": "Cool Charcoal",
            "hex": "#32373C",
            "rgb": [
                50,
                55,
                60
            ]
        },
        {
            "name": "Deep Off White",
            "hex": "#DDDDDD",
            "rgb": [
                221,
                221,
                221
            ]
        },
        {
            "name": "Royal Blue",
            "hex": "#255979",
            "rgb": [
                37,
                89,
                121
            ]
        },
        {
            "name": "Fire Brick",
            "hex": "#C02B0A",
            "rgb": [
                192,
                43,
                10
            ]
        },
        {
            "name": "Medium Aqua Marine",
            "hex": "#36BD96",
            "rgb": [
                54,
                189,
                150
            ]
        }
    ],
    "fonts": [
        {
            "name": "FraktionMono",
            "stack": "FraktionMono, \"serif\"",
            "weights": [
                400,
                700
            ],
            "source": "Self-hosted"
        },
        {
            "name": "StabilGrotesk",
            "stack": "StabilGrotesk, \"sans-serif\"",
            "weights": [
                100,
                300,
                400,
                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.

<a href="https://sitestyleguide.com/fas.org" title="Federation of American Scientists 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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Federation of American Scientistsstyle guide

Title &
description

Logo

Favicons

Colour

Balance

Neutrals

Light Off White

Black

Cool Charcoal

Deep Off White

Colours

Royal Blue

Fire Brick

Medium Aqua Marine

Gradients

FraktionMono

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

VMware by Broadcom

ProBlogger

NCI

Internal Revenue Service

Federation of American Scientistsstyle guide

Title &description

Logo

Favicons

Colour

Balance

Neutrals

Light Off White

Black

Cool Charcoal

Deep Off White

Colours

Royal Blue

Fire Brick

Medium Aqua Marine

Gradients

FraktionMono

Type scale

Sizes in use

Elements

Grid

Notes

Questions

Tokens

Share

Run fas.org?

Similar colours

VMware by Broadcom

ProBlogger

NCI

Internal Revenue Service

Title &
description