OpenAI

OpenAI is an AI research and deployment company — creator of the GPT model family, ChatGPT, the OpenAI API, and the Codex code- generation surface. The brand voice is research-grounded and understated: it lets demos and capability speak. Visually, OpenAI is monochrome-first — pure white or pure black canvases, a five- stop neutral ramp for quiet emphasis, and a small set of "hue" accents (red, lime, magenta, blue, yellow) reserved for diagrams and data visualization. Typography is OpenAI Sans, the company's proprietary brand face.

1 palette 3 fonts 0 assets 8 rules openaiairesearchbrandminimalmonochrome
Preview prompt
Use the [email protected] brand from brand-atoms.com.
Fetch https://brand-atoms.com/dist/brands/openai/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/openai/1.0.0/.

Brand Guide

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

OpenAI

[email protected]

OpenAI is an AI research and deployment company — creator of the GPT model family, ChatGPT, the OpenAI API, and the Codex code- generation surface. The brand voice is research-grounded and understated: it lets demos and capability speak. Visually, OpenAI is monochrome-first — pure white or pure black canvases, a five- stop neutral ramp for quiet emphasis, and a small set of "hue" accents (red, lime, magenta, blue, yellow) reserved for diagrams and data visualization. Typography is OpenAI Sans, the company's proprietary brand face.

Tags: openai, ai, research, brand, minimal, monochrome

Atoms

Palette

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

OpenAI's brand palette as observed on the live marketing site (openai.com). The brand is monochrome-first: a pure-white canvas with pure-black foreground in light mode, inverted in dark, and a calibrated five-stop neutral ramp ("primary" / "secondary" / "tertiary") for surfaces and quiet emphasis. OpenAI's research and documentation surfaces additionally publish a "hue" scale (red, blue, green, yellow, magenta, lime) used in diagrams, code-syntax highlighting, and data visualization. These are preserved here as a documented secondary scale.

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
openai-black OpenAI Black #000000
openai-white OpenAI White #FFFFFF
primary-solid-4 Primary Solid 4 #1F1F1F
primary-solid-12 Primary Solid 12 #333333
primary-solid-44 Primary Solid 44 #707070
primary-solid-60 Primary Solid 60 #999999
primary-solid-80 Primary Solid 80 #CCCCCC
secondary-solid-4 Secondary Solid 4 #F5F5F5
secondary-solid-12 Secondary Solid 12 #E0E0E0
secondary-solid-44 Secondary Solid 44 #8F8F8F
secondary-solid-60 Secondary Solid 60 #666666
secondary-solid-80 Secondary Solid 80 #333333
tertiary-solid-60 Tertiary Solid 60 #888888
tertiary-solid-80 Tertiary Solid 80 #5C5C5C
tertiary-solid-100 Tertiary Solid 100 #1F1F1F
openai-hue-red OpenAI Hue Red #ED6079
openai-hue-lime OpenAI Hue Lime #8FAC39
openai-hue-magenta OpenAI Hue Magenta #C759AB
openai-hue-blue OpenAI Hue Blue #36A6D7
openai-hue-yellow OpenAI Hue Yellow #E2A727
openai-accent-blue OpenAI Accent Blue #4DA3FF

Mode role mappings

Light mode

Role Swatch Hex
background openai-white #FFFFFF
surface secondary-solid-4 #F5F5F5
surface-elevated openai-white #FFFFFF
text-primary openai-black #000000
text-secondary secondary-solid-60 #666666
text-tertiary secondary-solid-44 #8F8F8F
primary openai-black #000000
primary-hover secondary-solid-80 #333333
accent openai-accent-blue #4DA3FF
accent-hover openai-hue-blue #36A6D7
warning openai-hue-yellow #E2A727
warning-hover openai-hue-yellow #E2A727
error openai-hue-red #ED6079
success openai-hue-lime #8FAC39
border secondary-solid-12 #E0E0E0

Dark mode

Role Swatch Hex
background openai-black #000000
surface primary-solid-4 #1F1F1F
surface-elevated primary-solid-12 #333333
text-primary openai-white #FFFFFF
text-secondary primary-solid-80 #CCCCCC
text-tertiary primary-solid-60 #999999
primary openai-white #FFFFFF
primary-hover primary-solid-80 #CCCCCC
accent openai-accent-blue #4DA3FF
accent-hover openai-hue-blue #36A6D7
warning openai-hue-yellow #E2A727
warning-hover openai-hue-yellow #E2A727
error openai-hue-red #ED6079
success openai-hue-lime #8FAC39
border primary-solid-12 #333333

Brand semantic roles

Colors

Role Swatch Hex
identity openai-black #000000
on-identity openai-white #FFFFFF
primary openai-black #000000
primary-hover secondary-solid-80 #333333
accent openai-accent-blue #4DA3FF
accent-hover openai-hue-blue #36A6D7
success openai-hue-lime #8FAC39
warning openai-hue-yellow #E2A727
error openai-hue-red #ED6079
text-primary-light openai-black #000000
text-primary-dark openai-white #FFFFFF
background-light openai-white #FFFFFF
background-dark openai-black #000000
surface-light secondary-solid-4 #F5F5F5
surface-dark primary-solid-4 #1F1F1F

Typography

Role Font role key
display heading
prose body
code mono

Rules

🛑 error (6)

contrastRatiotext-primary

  • against: background
  • minRatio: 7
  • standard: WCAG-AAA

Pure black on pure white (and vice versa) is the maximum possible contrast (21:1). The brand's monochrome posture clears AAA by construction; this rule guards against consumers swapping in mid-neutrals that would defeat the property.

colorChoiceroles.colors.primary

  • allowed: openai-black, openai-white
  • forbidden: openai-hue-red, openai-hue-blue, openai-hue-lime, openai-hue-magenta, openai-hue-yellow

OpenAI's primary brand color is monochrome — black on white, white on black. The "hue" tokens are reserved for data visualization, syntax highlighting, and illustration and must not be used as the brand interactive primary.

forbiddenTreatmentlogo

  • treatments: stretched, rotated, recolored, drop-shadow, gradient-fill, on-busy-photo

OpenAI's blossom mark is monochrome by design. Recolored, skewed, or gradient variants conflict with the brand's minimal posture.

fontPairingtypography.heading

  • requires: body
  • minSizeRatio: 1.5

OpenAI Sans is the only display face on openai.com; the visual hierarchy is established entirely by size and weight. A 1.5× minimum heading-to-body ratio preserves the hierarchy without introducing a second family.

accessibilityRequirement*

  • standard: WCAG-AA
  • criterion: 1.4.3

WCAG 2.1 Success Criterion 1.4.3 (Contrast Minimum) — Level AA. The brand's monochrome posture clears AA effortlessly; consumers must preserve the property when composing neutral ramps.

compositionConstraintroles.colors.identity

  • pairsWith: openai-white
  • doesNotPairWith: openai-hue-red, openai-hue-blue, openai-hue-magenta

The identity block is black-on-white or white-on-black. Placing the brand identity directly against a hue background breaks the documented monochrome treatment.

⚠️ warning (2)

enumMembershiptypography.heading.fontWeight

  • allowed: 400, 500, 600, 700

OpenAI Sans is distributed in a constrained weight range on openai.com. The marketing site uses Regular (400) for body, Medium (500) and SemiBold (600) for emphasis, and Bold (700) for hero headings. Display weights outside this band are reserved for special editorial contexts.

contextRestrictionroles.colors.accent

  • forbiddenContexts: background, large-fill
  • allowedContexts: link, data-viz-primary, focus-ring

OpenAI's documented accent blue (#4DA3FF) and the hue ramps appear at small sizes — links, data points, syntax tokens — not as large background fills. Large hue fills conflict with the brand's monochrome canvas.

Provenance

  • Source: https://openai.com/
  • License: Proprietary — All Rights Reserved
  • Attribution: OpenAI, OpCo. — visual identity captured from the deployed stylesheet on openai.com (--color-primary-, --color-secondary-, --color-hue-, --color-supply-accent- token families). OpenAI marks and logos are property of OpenAI.
  • Imported: 2026-05-17
  • Notes: OpenAI Sans is the proprietary brand typeface declared on openai.com (font-family: "OpenAI Sans", sans-serif). It is not publicly distributed. This atom references Inter@1 as the open- source rendering substitute and notes the proprietary primary in this provenance block.

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

Components — same template, themed by OpenAI

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.

OpenAI

A clear hierarchy in OpenAI'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 → openai-accent-blue #4DA3FF
accent-hover → openai-hue-blue #36A6D7
background-dark → openai-black #000000
background-light → openai-white #FFFFFF
error → openai-hue-red #ED6079
identity → openai-black #000000
on-identity → openai-white #FFFFFF
primary → openai-black #000000
primary-hover → secondary-solid-80 #333333
success → openai-hue-lime #8FAC39
surface-dark → primary-solid-4 #1F1F1F
surface-light → secondary-solid-4 #F5F5F5
text-primary-dark → openai-white #FFFFFF
text-primary-light → openai-black #000000
warning → openai-hue-yellow #E2A727

Typography

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

Palette mode mappings (from openai)

Light mode (15 roles)

accent → openai-accent-blue
accent-hover → openai-hue-blue
background → openai-white
border → secondary-solid-12
error → openai-hue-red
primary → openai-black
primary-hover → secondary-solid-80
success → openai-hue-lime
surface → secondary-solid-4
surface-elevated → openai-white
text-primary → openai-black
text-secondary → secondary-solid-60
text-tertiary → secondary-solid-44
warning → openai-hue-yellow
warning-hover → openai-hue-yellow

Dark mode (15 roles)

accent → openai-accent-blue
accent-hover → openai-hue-blue
background → openai-black
border → primary-solid-12
error → openai-hue-red
primary → openai-white
primary-hover → primary-solid-80
success → openai-hue-lime
surface → primary-solid-4
surface-elevated → primary-solid-12
text-primary → openai-white
text-secondary → primary-solid-80
text-tertiary → primary-solid-60
warning → openai-hue-yellow
warning-hover → openai-hue-yellow

Rules (8 typed constraints)

error · 6 rules

contrastRatio text-primary
against background
minRatio 7
standard WCAG-AAA

Pure black on pure white (and vice versa) is the maximum possible contrast (21:1). The brand's monochrome posture clears AAA by construction; this rule guards against consumers swapping in mid-neutrals that would defeat the property.

colorChoice roles.colors.primary
allowed openai-black, openai-white
forbidden openai-hue-red, openai-hue-blue, openai-hue-lime, openai-hue-magenta, openai-hue-yellow

OpenAI's primary brand color is monochrome — black on white, white on black. The "hue" tokens are reserved for data visualization, syntax highlighting, and illustration and must not be used as the brand interactive primary.

forbiddenTreatment logo
treatments stretched, rotated, recolored, drop-shadow, gradient-fill, on-busy-photo

OpenAI's blossom mark is monochrome by design. Recolored, skewed, or gradient variants conflict with the brand's minimal posture.

fontPairing typography.heading
requires body
minSizeRatio 1.5

OpenAI Sans is the only display face on openai.com; the visual hierarchy is established entirely by size and weight. A 1.5× minimum heading-to-body ratio preserves the hierarchy without introducing a second family.

accessibilityRequirement *
standard WCAG-AA
criterion 1.4.3

WCAG 2.1 Success Criterion 1.4.3 (Contrast Minimum) — Level AA. The brand's monochrome posture clears AA effortlessly; consumers must preserve the property when composing neutral ramps.

compositionConstraint roles.colors.identity
pairsWith openai-white
doesNotPairWith openai-hue-red, openai-hue-blue, openai-hue-magenta

The identity block is black-on-white or white-on-black. Placing the brand identity directly against a hue background breaks the documented monochrome treatment.

warning · 2 rules

enumMembership typography.heading.fontWeight
allowed 400, 500, 600, 700

OpenAI Sans is distributed in a constrained weight range on openai.com. The marketing site uses Regular (400) for body, Medium (500) and SemiBold (600) for emphasis, and Bold (700) for hero headings. Display weights outside this band are reserved for special editorial contexts.

contextRestriction roles.colors.accent
forbiddenContexts background, large-fill
allowedContexts link, data-viz-primary, focus-ring

OpenAI's documented accent blue (#4DA3FF) and the hue ramps appear at small sizes — links, data points, syntax tokens — not as large background fills. Large hue fills conflict with the brand's monochrome canvas.

Provenance

Source
https://openai.com/
License
Proprietary — All Rights Reserved
Attribution
OpenAI, OpCo. — visual identity captured from the deployed stylesheet on openai.com (--color-primary-*, --color-secondary-*, --color-hue-*, --color-supply-accent-* token families). OpenAI marks and logos are property of OpenAI.
Imported
2026-05-17
Notes
OpenAI Sans is the proprietary brand typeface declared on openai.com (font-family: "OpenAI Sans", sans-serif). It is not publicly distributed. This atom references Inter@1 as the open- source rendering substitute and notes the proprietary primary in this provenance block.