Brand books Draft · facts being checked

Brand book

City of Boston

Bold but human: the City underlines what matters, speaks plainly, and keeps the seal for when it must look official. Our reading

The system

Fixed, everywhere

City of Boston logo
Logo
AaMontserrat + Lora
Type pairing
  • Montserrat + Lora
  • Charles Blue, Optimistic Blue, Freedom Trail Red on white
  • the underlined B
  • square edges

The one thing that varies

Supporting blues and grays when the primaries do not work; full-color or blue-overlay photography.

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Color;%20Photography)

How loud each format gets

Silent
QuietProposal pageEmailPrint notice
CalmLanding page
WarmDeckSocial post
Loud
Loudest

Our engine's setting, built from their rules.

Every piece passes two checks

Logo hidden

Cover the B. It should still read as Boston: Montserrat caps on heavy Charles Blue rules, Lora italic blue links, white with gray bands, a red accent used once.

Swap test

Put another city's seal on it. If the underlines, the red-white-blue and the plain we/you copy still feel at home, it is not specific enough.

Strategy

The City of Boston, speaking with boldness and warmth: official when it must be, human by default. Our reading

01

Boldness

Boston's brand starts from boldness of opinion, thought and diversity, and a shared City. Published

02

Service

Make things easier and simpler: information that is useful, clear and relevant to each person. Published

03

Plain language

Write for the person with the least knowledge: active voice, short lines, plain words. Published

04

Access for everyone

Accessible and inclusive, in every language the City serves. Published

Full spec
For Published
Residents, City employees, businesses and visitors of every background and language
Problem Published
People come looking for answers to City tasks and need them fast and plainly
Promise Published
Make things easier and simpler for the people of Boston
Mission Published
We are here to serve: to make things easier and simpler for the people of Boston (paraphrase).

Proof behind each pillar

Story Our reading

Boston.gov's brand was built in 2016 with the redesign of the site: a bold underlined B, a red-white-and-blue palette with a modern gray, and Montserrat with Lora. The guide calls itself a foundation to build on, added to as the site comes to life.

Values

Confident

Strong statements, direct, quick to the point (paraphrase).

Published
Helpful

Useful, easy to understand, relevant to the individual (paraphrase).

Published
Optimistic

Every problem arrives with a plan to fix it (paraphrase).

Published
Humble

Never arrogant, verbose or exaggerated (paraphrase).

Published
Personal

We and you; honest, approachable, inclusive (paraphrase).

Published

Category. Municipal government: the official website and communications of the City of Boston, Massachusetts Observed

Why them

  1. The B and the City of Boston logo show the City is human; the seal is kept for authority (paraphrase). Published
  2. A palette rooted in the City's past: Charles Blue, Freedom Trail Red, with a modern gray. Published
  3. Photography of real people in the less famous parts of Boston, never models or stock. Published
  4. An open-source pattern library (Fleet) shared across City web properties. Published

Instead of

The official City seal (adopted 1823) where authority is needed: bills and non-digital forms.

Boilerplate Observed

Boston.gov is the City of Boston's official website: services, public notices, news, events and the people who serve the City, built on the open-source Fleet pattern library.

Taglines

We are Boston. Published

Welcome to the City of Boston Observed

They never claim

  • The digital seal replaces the official seal on all digital properties; the official seal is for bills and non-digital forms. Published
  • Only use photos the City has the rights to. Published

The guide opens with a short manifesto about boldness, diversity and a shared City, closing on "We are Boston." The homepage carries no slogan: it leads with today's date, City services and people.

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelinesboston.gov

Personality and voice

Confidentbut not ArrogantPublished
Helpfulbut not VerbosePublished
Optimisticbut not NaivePublished
Humblebut not BoastfulPublished
Personalbut not SlangyPublished

Plain, direct words serve people with the least knowledge, second-language readers and Google Translate alike.

Full spec
  • Never use if, maybe, but, may or could; state it
  • Make statements, not questions
  • Prefer a full stop to a comma; short sentences, few adjectives
  • Headlines at most 11 words
  • Sentences of 15 to 20 words; paragraphs of two to three sentences
  • Active voice (the "by zombies" test)
  • Say we, not The City; say you, not residents or applicants
  • Use contractions where they sound natural
  • Use must, never may or shall, for required steps
  • Spell out & and @
  • Avoid acronyms and jargon; write for the person who knows least
  • AP style for anything not covered
  • Title case headlines
  • Spell out one to nine; figures for 10 and up; percent, never %
  • Times as 9 a.m. - 5 p.m.: no :00, hyphen for spans, a.m./p.m. lowercase
  • Dates without st/nd/rd/th: September 5
  • Always use the Oxford comma
  • Capitalize City, City Council and Mayor when they mean Boston's
  • Phone numbers with dashes: 617-635-4500
  • Never use selfies, models or posed stock photos

ConfidentHelpfulOptimisticHumblePersonal

Five principles: Confident, Helpful, Optimistic, Humble, Personal. The writing guide turns them into plain-language rules: active voice, 11-word headlines, we and you, no may or shall, AP style with City exceptions.

  • No subjunctive: if, maybe, but, may, could
  • Headlines of 11 words or fewer
  • Sentences 15-20 words; paragraphs two to three sentences
  • Use we and you
  • Must, not may or shall
  • Spell out & and @; percent, not %
  • Oxford comma; capitalize City, City Council and Mayor
  • Phone numbers as 617-635-4500
  • Strong statements, not questions; the guide wants a point of view and a quick route to the answer.
  • Here to serve: every line should make a task easier for the person reading it.
  • Optimistic doers: a problem always comes with the plan to fix it.
  • Confident but never arrogant: few adjectives, short simple words, no exaggeration.
  • Personal: we and you, honest and approachable, but no slang from an institution of authority.
  • Two voices. The guide's brand voice (above) governs campaigns and editorial. The homepage is plainer and institutional: UPPERCASE Montserrat wayfinding labels (FEATURED RESOURCES, LATEST NEWS) and task-named links in title case (Pay a Parking Ticket). A landing page follows the homepage voice for labels and the brand voice for any sentence.

Their words

weyoumust

Never

maybemaycouldshallthe subjunctive&@%jargon and legaleseacronyms without explanation

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelines

  • Don’t questions where a statement will do
  • Don’t slang or conversational language
  • Don’t jargon, legalese and unexplained acronyms
ToneConfident, Helpful, Optimistic, Humble, Personal
Headlinemax 11 words, title case
Sentence15-20 words

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelinesboston.gov/departments/boston-digital-service/city-boston-writing-guide

Color

Pay a Parking Ticket

Do Optimistic Blue for links and buttons on white.

Pay a Parking Ticket

Don’t Optimistic Blue on Freedom Trail Red: the guide says they vibrate.

The palette pays homage to the City's past (the Charles, the Freedom Trail) while white space keeps content clear.

Full spec
  • Keep white dominant; use light gray liberally with it
  • Use the blues strongly and purposefully
  • Use red sparingly: it can alarm
  • Charles Blue for headers and anything that must look official
  • Optimistic Blue for links, buttons, backgrounds and photo overlays
  • Supporting colors only when the primaries do not work
  • Darkest supporting gray for body copy; lightest gray for backgrounds
  • Don’t put Optimistic Blue on Freedom Trail Red, or red on Optimistic Blue: they vibrate
  • Don’t use the near-black blue except when you need something like black
Charles Blue#091F2F / Pantone 295C
Optimistic Blue#1871BD / Pantone 285 C
Freedom Trail Red#FB4D42 / Pantone 1788C

Red, white and blue against a modern gray. White is the primary color of the site; Charles Blue, Optimistic Blue and Freedom Trail Red are bursts that point at notices and functions; supporting blues and grays fill in only when the primaries do not work.

Not published: exact color ratios (the guide shows a proportion image, no numbers).

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Color)github.com/CityOfBoston/patterns/blob/develop/stylesheets/variables/_colors.styl

Typography

We are Boston.

Aa
MontserratDisplay · open stand-in Montserrat
Aa
LoraText · open stand-in Lora

FEATURED RESOURCES

Do Montserrat Bold, uppercase, Charles Blue.

Featured resources

Don’t Montserrat headers are always uppercase.

The bold sans and the warm serif together read as the guide's "bold, yet human" voice.

Full spec
Their faceUseLicenseOpen stand-in
MontserratNavigation, buttons, primary headers, uppercase boldOpen (SIL OFL 1.1), Google Web Fonts; site serves a 2016-era buildMontserrat
No stand-in needed: the real face is open.
LoraBody text; large italic for quotes and secondary textOpen (SIL OFL 1.1), Google Web FontsLora
No stand-in needed: the real face is open.
  • Montserrat for navigation, buttons and primary headers, uppercase
  • Lora for body text; large italic for quotes and secondary text
  • Pair the two whenever possible
  • Email fallback: Georgia for Lora, Arial for Montserrat
  • Arabic: Markazi Text and Mada; Chinese: Noto Serif/Sans SC and TC
  • Don’t set Montserrat headers in sentence case
  • Don’t use a third face
DisplayMontserrat Bold, uppercase
TextLora Regular and Italic
EmailGeorgia / Arial

Two Google Web Fonts chosen for contrast and boldness: Montserrat, inspired by urban street posters, for navigation, buttons and primary headers, always uppercase bold; Lora, a calligraphic contemporary serif, for body text small and for quotes large and italic. Replacement faces are named for Arabic and Chinese.

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Typography)github.com/CityOfBoston/patterns/blob/develop/stylesheets/variables/_fonts.styl

Graphic elements

FEATURED RESOURCES

Do When something matters, Boston underlines it. The B logo and the BOSTON word sit on a Freedom Trail Red #FB4D42 bar; section headers sit on an 8px Charles Blue #091F2F rule the full container width; status titles and links are underlined in their own blue. One red underline per lockup.

Featured resources

Don’t set headers in red, or underline them in Optimistic Blue.

The underline · the B, the BOSTON wordmark, links, and every section header

LATEST NEWS

Do Montserrat Bold 45px/45px uppercase, -1px tracking, Charles Blue, left-aligned, on an 8px solid Charles Blue bottom border across the 1200px container (4.5px gap). Phone: 20px type, 5px rule. A right-aligned Lora italic Contact: link may sit on the same line. One per section.

Uppercase header on a heavy rule · every homepage section

FRIDAY, OCTOBER 30

Do Centered Montserrat Bold 28px uppercase date in a white box (12px side padding) breaking an 8px Charles Blue line across the full container (Fleet .str: 3px small, 5.3px medium, 8px large). One per page.

Date strikethrough · the daily status row under the hero

CITY OF BOSTON

Do Photograph under Optimistic Blue #1871BD at 60% opacity, white Lora italic kicker over a white Montserrat Bold uppercase title, centered. The guide names blue overlay with type as one of two photo treatments. One hero.

Blue photo overlay with type · heroes

Pay a Parking Ticket

Do Calls to a task are Lora italic in Optimistic Blue; Montserrat is reserved for labels, buttons and headers. The pair carries the guide's bold yet human voice.

Lora italic links · every card title, kicker and lead

OCT 31

Do A bookmark ribbon (notched bottom) holding a two-line Montserrat Bold date, OCT over 30: white with a #ECECEC hairline on news photos, #288BE4 with a black hairline at the top right of event cards. One per card.

Date ribbons · news and event cards

Specimens use sample copy, not City of Boston’s.

The underline is the logo's idea carried into every layout.

Full spec
  • Section headers sit on an 8px Charles Blue rule
  • Square corners on cards, tiles, inputs and photos
  • Headshots always cropped to a circle
  • Date ribbons on news and events
  • Don’t round the corners of cards or buttons
Header rule8px #091F2F
Input border3px #091F2F
Icon stroke3px

Boston underlines: the red bar under the B and BOSTON, 8px Charles Blue rules under every section header, the date set in a strikethrough. Square edges everywhere; circles only for headshots and icon frames; bookmark ribbons carry dates.

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelinesboston.gov

Iconography

100px experiential
65px small circular

Three families: experiential icons, bold line icons with 3px strokes and mostly hard edges, for actions; departmental icons, solid Charles Blue shapes underlined in Freedom Trail Red, for wayfinding; small circular icons inside a 3px circle, used inline and on the homepage.

Full spec
  • 3px strokes; hard edges; few rounded corners
  • Experiential icons for transactions people want to finish fast
  • Departmental icons filled Charles Blue, underlined red
  • Small icons sit in a 3px Charles Blue circle
  • Don’t add unnecessary rounded corners
Stroke3px
ColorCharles Blue

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Iconography)

Photography

Three subjects (people, skylines, landmarks) and two treatments (full color, and Optimistic Blue overlay with type).

Full spec

Three subjects (people, skylines, landmarks) and two treatments (full color, and Optimistic Blue overlay with type). People are candid and close, in the less famous parts of Boston, never models, stock or selfies; skylines and landmarks from unusual, human-level viewpoints. Headshots are always circles.

  • Real people doing real things, candid, up close
  • Imply human presence even without people
  • Shoot from eye level or below; make residents a bit heroic
  • Skylines and landmarks from a-typical, human perspectives; zoom in and crop boldly
  • Leave a blurry area to set type over
  • Circle-crop headshots in one consistent style
  • Only photos the City has rights to
  • Don’t models, stock or posed shots
  • Don’t photos from above eye level
  • Don’t selfies
  • Don’t tour-book views of landmarks
Treatmentsfull color; 60% Optimistic Blue overlay with type
Headshotscircle

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Photography)

Motion

Motion is almost absent: buttons turn red on hover, cards fill blue, the menu drawer fades, and the header language label cycles.

Full spec
  • Keep motion functional: state changes only
  • Don’t decorative animation
Button hover#1871BD to #FB4D42
Menuopacity 0.5s

Source: github.com/CityOfBoston/patterns

Interface & layout

The page, band by band

Official-site banner
Hero
Daily status row
Featured resources
Guides
Latest news
Featured videos
Upcoming events
Mayor
City Council
Feedback

Buttons

Primary action
Primary: 62px tall · 22.5px sides · 0px corners · 16px, weight 700 · #1871BD fill, #FFFFFF text
Full spec

White dominant pages of alternating white and light gray bands in a 1200px container; uppercase section headers on heavy rules; card grids of four, three or two; one full-bleed row of flat color tiles.

Measured from boston.gov's Page anatomy measured from computed styles on boston.gov at 1440 and 390 (2026-10-30); tokens from the open-source Fleet stylesheets; rules from the boston.gov Brand Guidelines and Writing guide..

Spacing

MeasureDesktopPhone
Page margin120px39px
Section padding56px35px
Hero text widthmax 1200px, centeredfull width
Card gap28px28px
Navigation65px65px

Type, at size

Hero H1

Lora · 90px (phone 40) · line 1 · tracking -1px · weight 700

Section header

Lora · 45px (phone 20) · line 1 · tracking -1px · weight 700

Hero kicker

Lora · 35px (phone 18) · line 1.32 · weight 400

Lead (stay connected)

Lora · 30px (phone 18) · line 1.5 · weight 400

Guide tile title

Lora · 30px (phone 20) · line 1 · weight 700

Mayor subhead

Lora · 30px (phone 18) · line 1.08 · tracking 1px · weight 600

Date strikethrough

Lora · 28px (phone 21.45) · line 1 · weight 700

Card title link

Lora · 25px (phone 18) · line 1.32 · weight 400

News headline

Lora · 22px (phone 19.56) · line 1.27 · tracking 0.4px · weight 400

Body

Lora · 18px (phone 16) · line 2.17 · weight 400

Card description

Lora · 18px (phone 15) · line 1.5 · weight 400

Status note / councilor title

Lora · 16px (phone 14) · line 1.5 · weight 400

Date ribbon

Lora · 18px (phone 16) · line 1 · weight 700

Person name / status title

Lora · 18px (phone 16) · line 1.1 · weight 400

Button

Lora · 16px (phone 14) · line 1.125 · tracking 1px · weight 700

Form label

Lora · 16px (phone 14) · line 1.4 · tracking 1px · weight 700

Department label

Lora · 16px (phone 14.2) · line 1.22 · weight 400

Nav link

Lora · 14px (phone 12) · line 4.64 · tracking 1px · weight 400

Footer link

Lora · 14px (phone 12) · line 1 · tracking 1px · weight 500

Banner text

Lora · 13.32px (phone 11.84) · line 1.3 · weight 400

Motion
Little motion: card hover fills Optimistic Blue, buttons turn red on hover; the language label in the header cycles
Buttons
square

Page anatomy

How City of Boston’s own landing pages are built, observed on boston.gov, 2026-10-30. The full measurements are in spec.md.

Navigation
White sticky header 65px tall with a soft shadow: a red square MENU button at the far left, the CITY of BOSTON logo, a thin divider and "Mayor Michelle Wu" in Lora italic; three uppercase links, a language switcher and a red search icon at the right.
Hero
Full-width photo band under a 60% Optimistic Blue overlay with two centered lines: a Lora italic kicker and a huge Montserrat Bold uppercase title.
Daily status row
White band: the date as a strikethrough header, then five centered status columns, each an icon in a 3px circle, an underlined uppercase blue title and a Lora italic note.
Featured resources
Light gray band: section header, then a 4x3 grid of white task cards, each a large line icon over a centered Lora italic blue title.
Guides
Full-bleed row of four flat color tiles with no gaps: a numbered circle, a Lora italic "Guide:" kicker and a Montserrat Bold uppercase title.
Latest news
Light gray band: section header, a 2x2 grid of white horizontal news cards (photo with a white date ribbon at left, Lora italic blue headline and gray uppercase department at right), then a blue button.
Featured videos
White band: section header and three bordered video cards, a short photo strip above a Lora italic blue title and a gray description.
Stay connected
Light gray band: section header, a large Lora italic sign-up sentence at the left, and an email form at the right with 3px outlined inputs and a blue button.
Upcoming events
White band: section header, a 3x3 grid of light gray event cards with a Lora italic blue title and a blue date ribbon at the top right, then a blue button.
Mayor
Light gray band: section header with a right-aligned Contact link, the Mayor's photo at the left and a short bio with a button at the right.
City Council
White band: section header with a Contact link, then a 4-column grid of light gray cards, each a circular headshot over a blue uppercase name and a gray italic title.
Feedback
Light gray strip with one centered button.
Footer
Charles Blue footer: the white B at the left, one row of uppercase bright-blue legal links, and Report an issue with a 311 badge at the right.

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelinesgithub.com/CityOfBoston/patternsboston.gov

In use

Full spec

How our engine applies Boston's system to each format. This is our recipe built from their rules, not something the City publishes. Level = how much color the format carries (0 plain, 5 full color blocks).

FormatWhat they didSource
presentation slidesThree Google Slides decks for City employees to duplicate.boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Employee%20toolkit)
documentsBlank document, memo, report and year-in-review templates in Google Docs.boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Employee%20toolkit)
email signatureTwo signature options to copy.boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Employee%20toolkit)
newsletterUpaknee layout and size guide (PDF) for the newsletter system.boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Layouts%20for%20media%20platforms)
phone and desktop backgroundsBranded wallpapers.boston.gov/government/cabinets/innovation-and-technology/brand-guidelines%20(Employee%20toolkit)

Our setting for each format

FormatLoudnessMust appearWhat varies
Landing pageBuild it the way boston.gov is built (kit.spec.page, homepage voice): Charles Blue banner, white header with red MENU square and the City of Boston logo; photo hero under 60% Optimistic Blue with Lora italic kicker and Montserrat 90px caps; uppercase section headers on 8px Charles Blue rules; alternating white and #F3F3F3 bands; square white cards with Lora italic blue titles; square Optimistic Blue buttons; Charles Blue footer with the white Bwhich sections and how many cards; a row of flat color tiles (blue, Charles Blue, red) once per page
DeckWhite slides, Montserrat caps headers on a Charles Blue rule, Lora text, the B in a cornera blue-overlay photo title slide
Proposal pageWhite ground, Charles Blue headers, plain-language copy, one Optimistic Blue buttonone light gray band
Social postCandid photo under 60% Optimistic Blue with Montserrat caps, or a flat Charles Blue groundLora italic kicker
EmailGeorgia and Arial fallbacks, white ground, Optimistic Blue buttona Charles Blue header strip
Print noticeOfficial seal where authority is needed; Charles Blue type; plain languagenone

Rules

Do

  • White is the primary color
  • Montserrat uppercase bold for headers, nav and buttons
  • Lora for text, italic for quotes
  • Red sparingly; never blue on red
  • Digital seal on screens, official seal for authority
  • Candid, real photography; circle headshots
  • Plain language: we, you, must

Don’t

  • models or stock photos
  • Optimistic Blue on Freedom Trail Red
  • may, shall, could
  • symbols for words

Source: boston.gov/government/cabinets/innovation-and-technology/brand-guidelinesboston.gov/departments/boston-digital-service/city-boston-writing-guide

Steal this kit

Your name and logo, City of Boston’s system.

Comes with you

  • Color roles and how much of each
  • Type pairing, with open fonts
  • Voice rules the writing check enforces
  • Icon, photo, illustration and motion recipes
  • The strategy frame, to fill with yours

Stays yours

  • Your name and logo
  • Your proof: numbers, customers, quotes
  • Your purpose and claims. Theirs aren’t yours to make

Use this kit for my brand Use this brand in Claude

Hand it to a developer

Your brand next

Get your brand audit Put your brand in Claude What goes in a brand book

What City of Boston doesn’t publish
  • Logo clear space and minimum size: not published.
  • Color proportions as numbers: not published (the guide shows a ratio image).
  • A pixel type scale: not published in the guide; Fleet code and homepage measurements supply it.
  • Motion principles, durations and easing: not published.
  • Illustration style: not published (the City uses photography and icons).
  • Iconography grid and sizes: not published beyond 3px strokes.
  • The guide names #0C2639 as the footer color; the 2026 homepage footer is Charles Blue #091F2F (observed).
  • Event ribbon blue #288BE4 appears only in page code, not in the guide or Fleet variables.

Each value is marked published, observed, our reading or our recipe, with its source. Checked 2026-10-30. Not affiliated with City of Boston.