# OpenAI

> `openai@1.0.0`

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** · `openai@1.0.0` · 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** `(inter@1.0.0)` | OFL-1.1 | sans-serif |
| `body` | **Inter** `(inter@1.0.0)` | OFL-1.1 | sans-serif |
| `mono` | **JetBrainsMono Nerd Font** `(jetbrainsmono-nerdfont@1.0.0)` | 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)

#### `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)

#### `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. 

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*Generated by the brand-atoms converter. Source: `openai@1.0.0` from the encyclopedia.*