# Khan Academy

> `khan-academy@1.0.0`

Khan Academy is a nonprofit education platform delivering free K-12 and early-college instruction across math, science, computing, economics, arts, and humanities — with Khanmigo as the integrated AI tutor product. The brand voice is patient, classroom-bright, and student-first: explainer videos, practice problems, mastery progress, and unhurried prose. Visually, Khan Academy is light-first with an Off White canvas, Off Black ink (the brand explicitly avoids pure #000000), and Khan Academy Blue (#1865F2) as the primary brand action color. The semantic system is animal-direct — Green for correct, Red for wrong, Gold for streaks, Purple for editorial — and Eggplant is the dedicated Khanmigo AI brand accent. Typography is Inter across body and headings, the open-source typeface Wonder Blocks recommends.


**Tags:** `khan-academy`, `education`, `k12`, `nonprofit`, `brand`, `light-first`, `blue`, `wonder-blocks`

## Atoms

### Palette

**Khan Academy** · `khan-academy@1.0.0` · MIT

> Khan Academy's brand palette, captured directly from the open-source Wonder Blocks design system that powers khanacademy.org. Wonder Blocks publishes the canonical named base swatches — Blue (#1865F2 primary), Green (#00A60E), Gold (#FFB100), Red (#D92916), Purple (#9059FF) — alongside the brand neutrals Off Black (#21242C), Off White (#F7F8FA), and the Khanmigo Eggplant (#5F1E5C) accent reserved for the AI tutoring product line. The brand identity is friendly, classroom-bright, and reader-first. Khan Academy is light-first; the canvas is Off White / White with Off Black ink, and Khan Academy Blue is the primary action color. 

### 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 |
|----|------|-------|
| `blue` | Blue | `#1865F2` |
| `green` | Green | `#00A60E` |
| `gold` | Gold | `#FFB100` |
| `red` | Red | `#D92916` |
| `purple` | Purple | `#9059FF` |
| `off-black` | Off Black | `#21242C` |
| `off-white` | Off White | `#F7F8FA` |
| `white` | White | `#FFFFFF` |
| `dark-blue` | Dark Blue | `#0B2149` |
| `teal` | Teal | `#14BF96` |
| `eggplant` | Eggplant (Khanmigo) | `#5F1E5C` |
| `blue-hover` | Blue Hover | `#11459E` |
| `blue-pale` | Blue Pale | `#E5EEFE` |
| `red-pale` | Red Pale | `#FBE7E5` |
| `green-pale` | Green Pale | `#E0F4E1` |
| `gold-pale` | Gold Pale | `#FFF6E0` |

## Mode role mappings

### Light mode

| Role | Swatch | Hex |
|------|--------|-----|
| `background` | `white` | `#FFFFFF` |
| `surface` | `off-white` | `#F7F8FA` |
| `surface-elevated` | `white` | `#FFFFFF` |
| `text-primary` | `off-black` | `#21242C` |
| `text-secondary` | `off-black` | `#21242C` |
| `text-tertiary` | `off-black` | `#21242C` |
| `primary` | `blue` | `#1865F2` |
| `primary-hover` | `blue-hover` | `#11459E` |
| `accent` | `blue` | `#1865F2` |
| `accent-hover` | `blue-hover` | `#11459E` |
| `warning` | `gold` | `#FFB100` |
| `warning-hover` | `gold` | `#FFB100` |
| `error` | `red` | `#D92916` |
| `success` | `green` | `#00A60E` |
| `border` | `off-white` | `#F7F8FA` |

### Dark mode

| Role | Swatch | Hex |
|------|--------|-----|
| `background` | `off-black` | `#21242C` |
| `surface` | `dark-blue` | `#0B2149` |
| `surface-elevated` | `off-black` | `#21242C` |
| `text-primary` | `white` | `#FFFFFF` |
| `text-secondary` | `off-white` | `#F7F8FA` |
| `text-tertiary` | `off-white` | `#F7F8FA` |
| `primary` | `blue` | `#1865F2` |
| `primary-hover` | `blue-pale` | `#E5EEFE` |
| `accent` | `teal` | `#14BF96` |
| `accent-hover` | `green` | `#00A60E` |
| `warning` | `gold` | `#FFB100` |
| `warning-hover` | `gold-pale` | `#FFF6E0` |
| `error` | `red` | `#D92916` |
| `success` | `green` | `#00A60E` |
| `border` | `dark-blue` | `#0B2149` |

## Brand semantic roles

### Colors

| Role | Swatch | Hex |
|------|--------|-----|
| `identity` | `white` | `#FFFFFF` |
| `on-identity` | `off-black` | `#21242C` |
| `primary` | `blue` | `#1865F2` |
| `primary-hover` | `blue-hover` | `#11459E` |
| `accent` | `blue` | `#1865F2` |
| `accent-hover` | `blue-hover` | `#11459E` |
| `mark` | `blue` | `#1865F2` |
| `success` | `green` | `#00A60E` |
| `warning` | `gold` | `#FFB100` |
| `error` | `red` | `#D92916` |
| `text-primary-light` | `off-black` | `#21242C` |
| `text-primary-dark` | `white` | `#FFFFFF` |
| `background-light` | `white` | `#FFFFFF` |
| `background-dark` | `off-black` | `#21242C` |
| `surface-light` | `off-white` | `#F7F8FA` |
| `surface-dark` | `dark-blue` | `#0B2149` |
| `text-secondary-light` | `off-black` | `#21242C` |
| `border-light` | `off-white` | `#F7F8FA` |

### Typography

| Role | Font role key |
|------|---------------|
| `display` | `heading` |
| `prose` | `body` |
| `code` | `mono` |

## Rules

### 🛑 error (7)

#### `colorChoice` → `roles.colors.primary`

- **allowed:** blue, blue-hover
- **forbidden:** dark-blue, teal, eggplant, purple, green, gold, red

> Khan Academy Blue (#1865F2) is the single signature primary across Wonder Blocks. Dark Blue is a brand-tier hero anchor; Teal and Purple are editorial accents; Eggplant is reserved for Khanmigo. Repurposing the semantic colors (Green correct, Gold streak, Red error) as the primary action color conflicts with their established meaning in the learner interface. 

#### `colorChoice` → `roles.colors.text-primary-light`

- **allowed:** off-black
- **forbidden:** black

> Wonder Blocks deliberately avoids pure #000000 for body copy. The canonical text ink is Off Black (#21242C); the slightly-warmed near-black reads more comfortably on the Off White canvas across the long-form explainers and practice prose that fill the learner interface. 

#### `forbiddenTreatment` → `logo`

- **treatments:** stretched, skewed, rotated, drop-shadow, recolored-non-brand, on-busy-photo

> Khan Academy's mark and the Wonder Blocks brand colors are precise institutional assets used by schools, teachers, and nonprofit partners worldwide. Skew, rotation, drop shadow, or arbitrary recoloring conflict with the brand's patient, classroom-bright posture. 

#### `contrastRatio` → `text-primary`

- **against:** `background`
- **minRatio:** `7`
- **standard:** `WCAG-AAA`

> Off Black (#21242C) on White (#FFFFFF) gives roughly 14:1 — clears AAA decisively. Khan Academy's K-12 learner audience and long-form explainer prose justify an AAA contrast target rather than the AA floor; many learners read on shared devices, low-cost tablets, and aging school hardware. 

#### `fontPairing` → `typography.display`

- **requires:** `prose`
- **minSizeRatio:** `1.4`

> Inter serves both display and prose roles on khanacademy.org; the typographic hierarchy is established by size and weight within a single family. A 1.4× minimum display-to-prose ratio preserves the lesson-heading-to-body relationship that makes module navigation legible. 

#### `contextRestriction` → `roles.colors.error`

- **forbiddenContexts:** confirmation, mastery-attained, completion
- **allowedContexts:** error-state, wrong-answer, destructive-action

> Red (#D92916) is reserved for the "wrong answer" / error / destructive signal in the learner interface. Using Red to celebrate completion or mastery would invert the meaning students have learned — Red means stop and reconsider; Green means proceed. 

#### `accessibilityRequirement` → `*`

- **standard:** `WCAG-AA`
- **criterion:** `1.4.3`

> WCAG 2.1 Success Criterion 1.4.3 (Contrast Minimum) — Level AA. Khan Academy's audience is global, cross-device, and includes children, students with learning differences, and adult learners; consumers composing in-brand surfaces must preserve the AA contrast floor on every text-on-color combination. 

### ⚠️ warning (2)

#### `contextRestriction` → `roles.colors.mark`

- **forbiddenContexts:** khanmigo-surface, ai-tutor-context
- **allowedContexts:** mark, logo, cta, link, focus-ring

> Khan Academy Blue is the brand mark for the core Khan Academy product. The Khanmigo AI tutor product surface uses Eggplant (#5F1E5C) as its brand accent. Mixing the two on the same surface confuses the product-tier signal — learners read Khanmigo as the AI experience and the rest of the platform as the core learning experience. 

#### `enumMembership` → `typography.heading.fontWeight`

- **allowed:** 400, 500, 600, 700

> The Khan Academy site uses Inter at Regular (400), Medium (500), SemiBold (600), and Bold (700). Wonder Blocks does not use Light (300) or Black (900) weights on learner surfaces — they conflict with the friendly, patient typographic voice. 

### 💡 recommendation (1)

#### `compositionConstraint` → `roles.colors.primary`

- **pairsWith:** white, off-white, off-black, dark-blue
- **doesNotPairWith:** red, gold, eggplant

> Khan Academy Blue reads cleanest on White or Off White, or as a fill on the Off Black / Dark Blue canvas. Placing KA Blue adjacent to Red, Gold, or Eggplant introduces chromatic conflict — the cool primary blue fights the warm semantic accents (or the Khanmigo brand purple) for the same eye position. 

## Provenance

- **Source:** <https://github.com/Khan/wonder-blocks>
- **License:** `MIT`
- **Attribution:** Khan Academy, Inc. — visual identity captured from the Khan/wonder-blocks open-source design system repository on 2026-05-19. Wonder Blocks is published under the MIT license. Khan Academy, Khanmigo, and associated marks remain property of Khan Academy, Inc. 
- **Imported:** `2026-05-19`
- **Notes:** Khan Academy publishes Wonder Blocks as an open-source design system (MIT) — token names and hex values are upstream-verified. The live site preloads inter-var.woff2 and declares Inter as the canonical font on every text surface; this atom references inter@1 as the canonical body and heading face. The Khanmigo brand accent (Eggplant) is reserved for the AI tutor product surface and is encoded as a contextRestriction rule below. 

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