Square

Square, a Block, Inc. brand, is the seller-side commerce and payments platform that put a card reader in the hand of every small merchant. The brand is named after its mark: a literal black square, geometric and exact. The visual identity is disciplined and merchant-facing — Square Black for the mark and wordmark, Square Blue (#006AFF) for interactive elements, and a warm light canvas that frames the seller dashboard. The voice is plain and operator-oriented: "Sell anywhere. Diversify revenue streams. Streamline operations."

1 palette 3 fonts 0 assets 8 rules fintechpaymentssquareblockmerchantlight-first
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Use the [email protected] brand from brand-atoms.com.
Fetch https://brand-atoms.com/dist/brands/square/1.0.0/json/brand.json
and apply its role mappings (primary, accent, identity, etc.),
reference the fonts in references.fonts, and honor every rule where
severity is "error". Surface any deviation you choose to make.

Downloads

All converter outputs for [email protected]. Served from /dist/brands/square/1.0.0/.

Brand Guide

Inline rendering of the Markdown brand guide. Same source as the markdown/brand-guide.md download.

Square

[email protected]

Square, a Block, Inc. brand, is the seller-side commerce and payments platform that put a card reader in the hand of every small merchant. The brand is named after its mark: a literal black square, geometric and exact. The visual identity is disciplined and merchant-facing — Square Black for the mark and wordmark, Square Blue (#006AFF) for interactive elements, and a warm light canvas that frames the seller dashboard. The voice is plain and operator-oriented: "Sell anywhere. Diversify revenue streams. Streamline operations."

Tags: fintech, payments, square, block, merchant, light-first

Atoms

Palette

Square · [email protected] · Proprietary — All Rights Reserved

Square (a Block, Inc. brand) corporate palette. The brand identity is anchored on Square Black — the literal square mark — paired with the saturated Square Blue (#006AFF) used as the primary interactive color and merchant accent. The canvas leans light-first for the seller dashboard and marketing, with the black mark and blue CTAs reading as the signature elements.

Fonts

Role Font License Classification
heading Inter ([email protected]) OFL-1.1 sans-serif
body Inter ([email protected]) OFL-1.1 sans-serif
mono JetBrainsMono Nerd Font ([email protected]) OFL-1.1 monospace

Swatches

ID Name Value
square-blue Square Blue #006AFF
square-blue-hover Square Blue Hover #0058D6
square-black Square Black #000000
square-near-black Square Near-Black #1A1A1A
square-ink Square Ink #212121
square-graphite Square Graphite #4F4F4F
square-gray Square Gray #7B7B7B
square-divider Square Divider #E5E5E5
square-white Square White #FFFFFF
square-fog Square Fog #F7F7F7
square-surface-dark Square Surface Dark #2B2B2B

Mode role mappings

Light mode

Role Swatch Hex
background square-white #FFFFFF
surface square-fog #F7F7F7
surface-elevated square-white #FFFFFF
text-primary square-ink #212121
text-secondary square-graphite #4F4F4F
text-tertiary square-gray #7B7B7B
primary square-blue #006AFF
primary-hover square-blue-hover #0058D6
accent square-blue #006AFF
accent-hover square-blue-hover #0058D6
warning square-blue-hover #0058D6
warning-hover square-blue #006AFF
error square-black #000000
success square-blue #006AFF

Dark mode

Role Swatch Hex
background square-near-black #1A1A1A
surface square-surface-dark #2B2B2B
surface-elevated square-surface-dark #2B2B2B
text-primary square-white #FFFFFF
text-secondary square-gray #7B7B7B
text-tertiary square-graphite #4F4F4F
primary square-blue #006AFF
primary-hover square-blue-hover #0058D6
accent square-blue #006AFF
accent-hover square-blue-hover #0058D6
warning square-blue-hover #0058D6
warning-hover square-blue #006AFF
error square-white #FFFFFF
success square-blue #006AFF

Brand semantic roles

Colors

Role Swatch Hex
identity square-black #000000
on-identity square-white #FFFFFF
primary square-blue #006AFF
primary-hover square-blue-hover #0058D6
accent square-blue #006AFF
accent-hover square-blue-hover #0058D6
mark square-black #000000
text-primary-light square-ink #212121
text-primary-dark square-white #FFFFFF
text-secondary-light square-graphite #4F4F4F
background-light square-white #FFFFFF
background-dark square-near-black #1A1A1A
surface-light square-fog #F7F7F7
surface-dark square-surface-dark #2B2B2B
divider square-divider #E5E5E5

Typography

Role Font role key
display heading
prose body
code mono

Rules

🛑 error (6)

colorChoicelogo.mark.fill

  • allowed: square-black, square-white
  • forbidden: square-blue, square-blue-hover, square-ink, square-graphite

The Square mark renders only in solid black (on light surfaces) or reversed white (on dark surfaces). Blue is the interactive color for CTAs and links — not a mark fill. Recoloring the square into off-brand hues violates Square's brand-use guidance.

forbiddenTreatmentlogo

  • treatments: stretched, rotated, recolored, drop-shadow, gradient-fill, on-busy-photo, inverted-without-variant

The Square mark is a literal geometric square — its identity depends on exact proportions and a flat solid fill. Stretching, rotating beyond 0°, recoloring, or applying drop-shadows breaks the most essential brand cue.

contrastRatiotext-primary

  • against: background
  • minRatio: 4.5
  • standard: WCAG-AA

Square Ink (#212121) on Square White (#FFFFFF) gives ~16:1 — well above WCAG 2.1 Level AA. This rule guards the floor for any new foreground/background pairing.

contrastRatioroles.colors.primary

  • against: background
  • minRatio: 4.5
  • standard: WCAG-AA

Square Blue (#006AFF) on white reaches ~5.6:1 — clears AA for normal text. Buttons using the blue fill with white text exceed 6:1; this rule guards link usage so the brand interactive color stays AA-compliant against the canvas.

contextRestrictionroles.colors.mark

  • forbiddenContexts: body-text, secondary-link

Square Black is reserved for the mark, the wordmark, and primary headlines. Using solid #000000 for body text or secondary links muddles the mark/text hierarchy the brand depends on; use Square Ink (#212121) for body instead.

accessibilityRequirement*

  • standard: WCAG-AA
  • criterion: 1.4.3

WCAG 2.1 Success Criterion 1.4.3 (Contrast Minimum) — Level AA. Square's seller-facing surfaces have an elevated trust requirement; AA is the floor on any new role pairing.

⚠️ warning (2)

enumMembershiptypography.heading.fontWeight

  • allowed: 500, 600, 700

Square's marketing surfaces use Sharp Sans in Medium (500), Semibold (600), and Bold (700) for headlines. Lighter cuts read as body weight and compromise the confident merchant-facing voice; heavier cuts are outside the standard corporate kit.

fontPairingtypography.heading

  • requires: body
  • minSizeRatio: 1.5

Square's marketing hero typography runs materially larger than body copy. A 1.5× minimum size ratio preserves the display-to- prose hierarchy the seller-facing voice depends on.

Provenance

  • Source: https://squareup.com/us/en/about/press
  • License: Proprietary — All Rights Reserved
  • Attribution: Block, Inc. / Square — Square, the Square wordmark, and the Square mark are registered trademarks of Block, Inc. The signature Square Blue (#006AFF) is documented across Square's press kit and visible in the deployed squareup.com marketing surfaces. Sharp Sans is the proprietary corporate typeface historically used across Square; Inter is referenced here as the open-source fallback.
  • Imported: 2026-05-18
  • Notes: Square's parent rebranded to Block in 2021. The Square seller brand retained its identity. Sharp Sans (proprietary) is not publicly distributed; this atom references Inter for both heading and body roles and notes Sharp Sans in provenance. The Square mark is rendered in solid black on light surfaces or in reversed white on dark; "recolored" treatments are forbidden.

Generated by the brand-atoms converter. Source: [email protected] from the encyclopedia.

Components — same template, themed by Square

Every block below renders from the resolved palette + font references on this brand. Swap the brand and the same template re-themes — no per-brand component code required.

Square

A clear hierarchy in Square's typeface

Tertiary heading — supporting structure

Body copy renders in the brand's prose font on the brand's background. Inline links and highlighted phrases pick up the brand's primary and highlight roles. Code spans like brand.references.palette fall back to the monospace face.

A blockquote uses the brand's accent color as its rule. Useful for pulling tagline copy out of running prose.
Bulleted list
  • Bullet markers inherit the brand's primary color.
  • Item spacing reads as a deliberate vertical rhythm.
  • Nested items still resolve to the same primary.
    • Second-level item using the accent.
    • Third bullet wraps cleanly at narrow widths.
Numbered list
  1. Open the brand's resolved spec.
  2. Apply roles to the component template.
  3. Render the surface in the brand's identity.
  4. Audit the output against the typed rules.
Buttons
Callout boxes
Info

Neutral status — provides supplemental context without urgency. Uses the brand's primary as the rule.

Success

Confirms a completed action — palette role success determines the rule color.

Warning

Calls out something that needs attention but isn't an error — palette role warning.

Error

Surfaces a failure that blocks progress — palette role error. Use sparingly.

Table
Role Resolves to Mode
primarybrand color #1light + dark
accentbrand color #2light + dark
warningbrand warninglight + dark
errorbrand errorlight + dark

Atoms

Brand semantic roles

Brand-level role overrides on top of palette-default mappings. Each role resolves to a concrete swatch or font reference.

Colors

accent → square-blue #006AFF
accent-hover → square-blue-hover #0058D6
background-dark → square-near-black #1A1A1A
background-light → square-white #FFFFFF
divider → square-divider #E5E5E5
identity → square-black #000000
mark → square-black #000000
on-identity → square-white #FFFFFF
primary → square-blue #006AFF
primary-hover → square-blue-hover #0058D6
surface-dark → square-surface-dark #2B2B2B
surface-light → square-fog #F7F7F7
text-primary-dark → square-white #FFFFFF
text-primary-light → square-ink #212121
text-secondary-light → square-graphite #4F4F4F

Typography

code → mono JetBrainsMono Nerd Font
display → heading Inter
prose → body Inter

Palette mode mappings (from square)

Light mode (14 roles)

accent → square-blue
accent-hover → square-blue-hover
background → square-white
error → square-black
primary → square-blue
primary-hover → square-blue-hover
success → square-blue
surface → square-fog
surface-elevated → square-white
text-primary → square-ink
text-secondary → square-graphite
text-tertiary → square-gray
warning → square-blue-hover
warning-hover → square-blue

Dark mode (14 roles)

accent → square-blue
accent-hover → square-blue-hover
background → square-near-black
error → square-white
primary → square-blue
primary-hover → square-blue-hover
success → square-blue
surface → square-surface-dark
surface-elevated → square-surface-dark
text-primary → square-white
text-secondary → square-gray
text-tertiary → square-graphite
warning → square-blue-hover
warning-hover → square-blue

Rules (8 typed constraints)

error · 6 rules

colorChoice logo.mark.fill
allowed square-black, square-white
forbidden square-blue, square-blue-hover, square-ink, square-graphite

The Square mark renders only in solid black (on light surfaces) or reversed white (on dark surfaces). Blue is the interactive color for CTAs and links — not a mark fill. Recoloring the square into off-brand hues violates Square's brand-use guidance.

forbiddenTreatment logo
treatments stretched, rotated, recolored, drop-shadow, gradient-fill, on-busy-photo, inverted-without-variant

The Square mark is a literal geometric square — its identity depends on exact proportions and a flat solid fill. Stretching, rotating beyond 0°, recoloring, or applying drop-shadows breaks the most essential brand cue.

contrastRatio text-primary
against background
minRatio 4.5
standard WCAG-AA

Square Ink (#212121) on Square White (#FFFFFF) gives ~16:1 — well above WCAG 2.1 Level AA. This rule guards the floor for any new foreground/background pairing.

contrastRatio roles.colors.primary
against background
minRatio 4.5
standard WCAG-AA

Square Blue (#006AFF) on white reaches ~5.6:1 — clears AA for normal text. Buttons using the blue fill with white text exceed 6:1; this rule guards link usage so the brand interactive color stays AA-compliant against the canvas.

contextRestriction roles.colors.mark
forbiddenContexts body-text, secondary-link

Square Black is reserved for the mark, the wordmark, and primary headlines. Using solid #000000 for body text or secondary links muddles the mark/text hierarchy the brand depends on; use Square Ink (#212121) for body instead.

accessibilityRequirement *
standard WCAG-AA
criterion 1.4.3

WCAG 2.1 Success Criterion 1.4.3 (Contrast Minimum) — Level AA. Square's seller-facing surfaces have an elevated trust requirement; AA is the floor on any new role pairing.

warning · 2 rules

enumMembership typography.heading.fontWeight
allowed 500, 600, 700

Square's marketing surfaces use Sharp Sans in Medium (500), Semibold (600), and Bold (700) for headlines. Lighter cuts read as body weight and compromise the confident merchant-facing voice; heavier cuts are outside the standard corporate kit.

fontPairing typography.heading
requires body
minSizeRatio 1.5

Square's marketing hero typography runs materially larger than body copy. A 1.5× minimum size ratio preserves the display-to- prose hierarchy the seller-facing voice depends on.

Provenance

Source
https://squareup.com/us/en/about/press
License
Proprietary — All Rights Reserved
Attribution
Block, Inc. / Square — Square, the Square wordmark, and the Square mark are registered trademarks of Block, Inc. The signature Square Blue (#006AFF) is documented across Square's press kit and visible in the deployed squareup.com marketing surfaces. Sharp Sans is the proprietary corporate typeface historically used across Square; Inter is referenced here as the open-source fallback.
Imported
2026-05-18
Notes
Square's parent rebranded to Block in 2021. The Square seller brand retained its identity. Sharp Sans (proprietary) is not publicly distributed; this atom references Inter for both heading and body roles and notes Sharp Sans in provenance. The Square mark is rendered in solid black on light surfaces or in reversed white on dark; "recolored" treatments are forbidden.