SiteStyleGuide

Unofficial A style guide made by SiteStyleGuide from golang.org’s public web pages. Not affiliated with or endorsed by golang.org. The real site is golang.org ↗

golang.org logo

Unofficial style guide

golang.orgstyle guide

golang.org’s website (golang.org) uses Segoe UI for its headings and body text. Its palette is led by Light Steel Blue (#007D9C), Gold (#FDDD00) and Powder Blue (#BFEAF4), with #000000 text on #FFFFFF. Captured from the live site on 25 October 2026.

Website
golang.org
Typefaces
Segoe UI, Menlo, Roboto
Palette
4 neutrals, 12 colours, 3 gradients
Captured
25 Oct 2026 · added by @sitestyleguide
https://go.dev/ Screenshot
Screenshot of the golang.org homepage on a desktop screen
Screenshot of golang.org on a 1440 px desktop screen, 25 Oct 2026.

Identity & metadata

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

Title &
description

Page title
The Go Programming Language
● 27 / 60 characters
Meta description
Go is an open source programming language that makes it simple to build secure, scalable systems.
● 97 / 160 characters
og:title
The Go Programming Language
og:description
Go is an open source programming language that makes it simple to build secure, scalable systems.
Language
en
Theme colour
#00add8

In search results

golang.orghttps://go.dev/

The Go Programming Language

Go is an open source programming language that makes it simple to build secure, scalable systems.

When shared

The image golang.org shares with links

golang.org

The Go Programming Language

Go is an open source programming language that makes it simple to build secure, scalable systems.

Back to top ↑

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 44.4%
  • Light Steel Blue 26.1%
  • Gold 5.3%
  • Powder Blue 4%
  • Grey 2.3%
  • Charcoal 2.2%
  • Khaki 2.2%
  • Deep Sky Blue 2.2%
  • Light Yellow 2%
  • Black 1.8%
  • Midnight Blue 1.6%
  • Light Sea Green 1.5%
  • Misty Rose 1.3%
  • Sky Blue 1.1%
  • Deep Steel Blue 1.1%
  • Medium Violet Red 1.1%

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 · .Hero-actions a.Secondary, #archive h2.toggleButton

  • Grey

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 0 0 40
    On text
    7.37:1 AAA
    On white
    2.85:1 Fail

    Text · pre .ln, #blog #content .tags

  • Charcoal

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    5 3 0 74
    On text
    2.02:1 Fail
    On white
    10.38:1 AAA

    Background · [data-theme='dark'] .Card, :root:not([data-theme='light']) .Card

  • Black

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 0 0 100
    On text
    —
    On white
    21.00:1 AAA

    Text · #blog a.head, .Security-secondary-cta-body span

Colours

Brand colours and accents, most used first
  • Light Steel Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    100 20 0 39
    On text
    4.41:1 AA large
    On white
    4.76:1 AA

    Background, text, border · .Site-header, a.btn

  • Gold

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 13 100 1
    On text
    15.52:1 AAA
    On white
    1.35:1 Fail

    Background, border · .Hero-actions a.Primary, pre .highlight

  • Powder Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    22 4 0 4
    On text
    16.29:1 AAA
    On white
    1.29:1 Fail

    Background · .WhoUsesSubPage-heroImg, .Security-secondary-cta

  • Khaki

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 6 40 1
    On text
    17.81:1 AAA
    On white
    1.18:1 Fail

    Background · .SurveyBanner, --survey-yellow-light

  • Deep Sky Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    100 20 0 15
    On text
    7.97:1 AAA
    On white
    2.64:1 Fail

    Theme, border · theme-color meta tag, .Header-menuItem--active a:link

  • Light Yellow

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 0 13 0
    On text
    20.60:1 AAA
    On white
    1.02:1 Fail

    Background · .Playground-inputContainer, .Playground-runButton

  • Midnight Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    45 22 0 74
    On text
    1.65:1 Fail
    On white
    12.72:1 AAA

    Background · .Footer, --slate

  • Light Sea Green

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    100 0 4 36
    On text
    6.65:1 AA
    On white
    3.16:1 AA large

    Background · .UseCase-logo, .StarItem-icon

  • Misty Rose

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 13 13 0
    On text
    16.64:1 AAA
    On white
    1.26:1 Fail

    Background · .linedtextarea .lineerror, --color-diff-old

  • Sky Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    59 11 0 11
    On text
    10.92:1 AAA
    On white
    1.92:1 Fail

    Text · .FeaturedUsers-moreProjectsBtn, --turq-light

  • Deep Steel Blue

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    100 24 0 39
    On text
    4.07:1 AA large
    On white
    5.16:1 AA

    Text · .Playground-button, --turq-bright

  • Medium Violet Red

    HEX
    RGB
    HSL
    OKLCH
    CMYK
    0 51 36 33
    On text
    4.16:1 AA large
    On white
    5.04:1 AA

    Text · .Playground-output .stderr, --color-text-alert

Gradients

  • linear-gradient( 10.64deg, #007d9c 0%, #00a29c 100% )

  • linear-gradient( 0deg, 50vw, #bfeaf4 50vw )

  • linear-gradient( 0deg, 40vw, #bfeaf4 40vw )

Back to top ↑

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.

Segoe UI

Aa 400

Segoe UI

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

Aa 400

Menlo

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

Aa 700

Roboto

System font, or not loaded on this page · weights 700 · buttons · shown in a stand-in if you don’t have it

Aa 400

SFMono-Regular

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

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

Type scale

From the site’s CSS
Heading 1 1.5rem · 24 px / 2rem weight 400

golang.org

Heading 2 2.25rem · 36 px / 2.925rem weight 400

The Go Programming Language

Heading 3 1rem · 16 px / 1.5rem weight 400

The Go Programming Language

Heading 4 0.875rem · 14 px / 1.5rem weight 400

The Go Programming Language

Heading 5 1rem · 16 px

The Go Programming Language

Heading 6 1rem · 16 px

The Go Programming Language

Body — / 1.4 Segoe UI

Go is an open source programming language that makes it simple to build secure, scalable systems.

Paragraph 0.875rem · 14 px / 1.375rem weight 400

Go is an open source programming language that makes it simple to build secure, scalable systems.

Link 0.875rem · 14 px weight 700

Read more about golang.org

Sizes in use

Most common across the site
  • 36pxline 32px · 4 rules
  • 24pxline 2rem · 9 rules
  • 18pxline 2rem · 15 rules
  • 16pxline 1.5rem · 34 rules
  • 14pxline 1.5rem · 44 rules
  • 13px10 rules
  • 12pxline 0.875rem · 7 rules
  • 11pxline 0.813rem · 5 rules

Back to top ↑

Elements

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

Elements

Corner radius

  • 0.25rem · 12×
  • 0.3125rem · 7×
  • 0.125rem · 5×
  • 50% · 4×
  • 4px · 2×
  • 0.5rem · 2×

Shadows

  • 0 0.125rem 0.5rem 0 rgba(0, 0, 0, 0.22)
  • 0 0.125rem 0.125rem rgba(171, 171, 171, 0.405239)
  • 0 0.0625rem 0.125rem rgba(171, 171, 171, 0.3)
  • 0 0.0625rem 0.1875rem rgba(60, 64, 67, 0.15), 0 0.0625rem 0.125rem rgba(60, 64, 67, 0.3)

Back to top ↑

Layout

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

Grid

Breakpoints

512
608
768
832
923
1068
1164
1248

On a scale of 0 to 1440 px.

Content widths (max-width)

1212 px
1088 px
1000 px
800 px
640 px
400 px

Back to top ↑

Notes

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

Notes

  • ● FineThe title is 27 characters, short enough to show in full in search results.

Back to top ↑

Questions

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

Questions

What font does golang.org use?
golang.org’s website uses one typeface: Segoe UI (headings and body text), a system font.
What are golang.org’s brand colours?
The main colours on golang.org are Light Steel Blue (#007D9C), Gold (#FDDD00), Powder Blue (#BFEAF4), Khaki (#FCEE96), Deep Sky Blue (#00ADD8) and Light Yellow (#FFFFDD).
What colour is golang.org’s text and background?
Body text is #000000 on a #FFFFFF background.
Where is golang.org’s logo from?
The logo shown in this guide was found on golang.org’s homepage. For official logo files and usage rules, check golang.org’s own brand or press page.
Is this golang.org’s official style guide?
No. SiteStyleGuide made it from golang.org’s public web pages on 25 October 2026, and isn’t affiliated with golang.org. Members can refresh a guide after 90 days to pick up changes.

Back to top ↑

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

golang-org-tokens.css

Download

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

/* golang.org design tokens, from SiteStyleGuide (https://sitestyleguide.com/golang.org) */
:root {
  /* Colours */
  --text: #000000;
  --background: #FFFFFF;
  --colour-white: #FFFFFF;
  --colour-grey: #999999;
  --colour-charcoal: #3F4042;
  --colour-black: #000000;
  --colour-light-steel-blue: #007D9C;
  --colour-gold: #FDDD00;
  --colour-powder-blue: #BFEAF4;
  --colour-khaki: #FCEE96;
  --colour-deep-sky-blue: #00ADD8;
  --colour-light-yellow: #FFFFDD;
  --colour-midnight-blue: #253443;
  --colour-light-sea-green: #00A29C;
  --colour-misty-rose: #FFDDDD;
  --colour-sky-blue: #5DC9E2;
  --colour-deep-steel-blue: #00769C;
  --colour-medium-violet-red: #AA536C;
  --gradient-1: linear-gradient( 10.64deg, #007d9c 0%, #00a29c 100% );
  --gradient-2: linear-gradient( 0deg, 50vw, #bfeaf4 50vw );
  --gradient-3: linear-gradient( 0deg, 40vw, #bfeaf4 40vw );

  /* Typefaces */
  --font-body: -apple-system, blinkmacsystemfont, 'Segoe UI', 'Helvetica', 'Arial', sans-serif;
  --font-other: 'Menlo', monospace;
  --font-buttons: 'Roboto', sans-serif;

  /* Type scale */
  --text-h1: 1.5rem;
  --leading-h1: 2rem;
  --text-h2: 2.25rem;
  --leading-h2: 2.925rem;
  --text-h3: 1rem;
  --leading-h3: 1.5rem;
  --text-h4: 0.875rem;
  --leading-h4: 1.5rem;
  --text-h5: 1rem;
  --text-h6: 1rem;
  --text-p: 0.875rem;
  --leading-p: 1.375rem;
  --text-a: 0.875rem;

  /* Shape */
  --radius-1: 0.25rem;
  --radius-2: 0.3125rem;
  --radius-3: 0.125rem;
  --radius-4: 50%;
  --radius-5: 4px;
  --radius-6: 0.5rem;

  /* Layout (breakpoints can’t be used in media queries as variables; they’re here for reference) */
  --breakpoint-1: 512px;
  --breakpoint-2: 608px;
  --breakpoint-3: 768px;
  --breakpoint-4: 832px;
  --breakpoint-5: 923px;
  --breakpoint-6: 1068px;
  --breakpoint-7: 1164px;
  --breakpoint-8: 1248px;
  --max-width-1: 1212px;
  --max-width-2: 1088px;
  --max-width-3: 1000px;
  --max-width-4: 800px;
  --max-width-5: 640px;
  --max-width-6: 400px;
}

Back to top ↑

Share

Links open each service’s own share page. Nothing from them loads here.

Share

Run golang.org?

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.

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

Back to top ↑

Other websites using Segoe UI as their main typeface
Websites whose lead colour is closest to golang.org’s

Captured from golang.org on 25 October 2026. SiteStyleGuide isn’t affiliated with or endorsed by golang.org; this guide describes the public website for reference.