W3C Design Tokens
3 filesCross-tool design-token spec (DTCG/W3C). Light + dark mode siblings.
Rust
Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety via its ownership and borrow-checker model. The brand voice is engineering-honest, community-stewarded, and quietly proud — measured tone, deference to the compiler, and a strong open-source ethic carried since the language's Mozilla incubation. The visual identity centers on Rust Orange (#D34516), the gear-and-R logomark, and a typographic voice that pairs a humanist sans for prose with a code monospace for source samples. The Rust Foundation acts as steward of the trademark and brand.
1 palette 3 fonts 0 assets 9 rules
Preview prompt
Use the [email protected] brand from brand-atoms.com.
Fetch https://brand-atoms.com/dist/brands/rust/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/rust/1.0.0/.
JSON
1 filePlain JSON mirror of the resolved brand — palette, fonts, roles, rules.
CSS variables
1 fileCSS custom properties on :root with prefers-color-scheme dark.
SCSS
1 fileSCSS variables + Sass maps for swatches, roles, and fonts.
Tailwind config
1 fileTailwind v3 theme.extend.colors + fontFamily.
Figma Tokens
1 fileFigma Tokens plugin JSON (Tokens Studio compatible).
Swift
1 fileSwift enums for SwiftUI / UIKit color + font tokens.
Kotlin / Compose
1 fileKotlin objects for Jetpack Compose color + typography tokens.
Markdown guide
1 fileHuman-readable brand guide. Same source as the on-page Brand Guide.
Brand Guide
Inline rendering of the Markdown brand guide. Same source as the
markdown/brand-guide.md download.
Rust
Rust is a systems programming language that runs blazingly fast, prevents segfaults, and guarantees thread safety via its ownership and borrow-checker model. The brand voice is engineering-honest, community-stewarded, and quietly proud — measured tone, deference to the compiler, and a strong open-source ethic carried since the language's Mozilla incubation. The visual identity centers on Rust Orange (#D34516), the gear-and-R logomark, and a typographic voice that pairs a humanist sans for prose with a code monospace for source samples. The Rust Foundation acts as steward of the trademark and brand.
Tags: rust, programming-language, systems, open-source, brand, foundation
Atoms
Palette
Rust · [email protected] · CC-BY-4.0
Rust language brand palette anchored on Rust Orange (#D34516), the signature accent of the gear-and-R mark and the cargo and rust-lang.org marketing surfaces. The full Rust Foundation brand expression pairs the orange with a deeper Rust Dark Blue (#1E2650), a supporting blue for technical content (Rust Blue #28607F), a neutral metallic gray (Rust Silver #67737A), and a green reserved for the database / sustainability surfaces (Rust Green #61784D). Light-mode is canvas- white; dark-mode inverts to a deep, near-black surface set so the orange retains its high-energy role.
Fonts
| Role | Font | License | Classification |
|---|---|---|---|
heading |
Inter ([email protected]) |
OFL-1.1 | sans-serif |
body |
Inter ([email protected]) |
OFL-1.1 | sans-serif |
mono |
Source Code Pro ([email protected]) |
OFL-1.1 | monospace |
Swatches
| ID | Name | Value |
|---|---|---|
rust-orange |
Rust Orange | #D34516 |
rust-dark-blue |
Rust Dark Blue | #1E2650 |
rust-blue |
Rust Blue | #28607F |
rust-silver |
Rust Silver | #67737A |
rust-green |
Rust Green | #61784D |
rust-black |
Rust Black | #0E0E0E |
rust-charcoal |
Rust Charcoal | #222222 |
rust-light-gray |
Rust Light Gray | #D7D7D7 |
rust-off-white |
Rust Off-White | #F4F4F4 |
rust-white |
Rust White | #FFFFFF |
Mode role mappings
Light mode
| Role | Swatch | Hex |
|---|---|---|
background |
rust-white |
#FFFFFF |
surface |
rust-off-white |
#F4F4F4 |
surface-elevated |
rust-white |
#FFFFFF |
text-primary |
rust-dark-blue |
#1E2650 |
text-secondary |
rust-silver |
#67737A |
text-tertiary |
rust-blue |
#28607F |
primary |
rust-orange |
#D34516 |
primary-hover |
rust-dark-blue |
#1E2650 |
accent |
rust-blue |
#28607F |
accent-hover |
rust-dark-blue |
#1E2650 |
warning |
rust-orange |
#D34516 |
warning-hover |
rust-dark-blue |
#1E2650 |
error |
rust-orange |
#D34516 |
success |
rust-green |
#61784D |
Dark mode
| Role | Swatch | Hex |
|---|---|---|
background |
rust-black |
#0E0E0E |
surface |
rust-charcoal |
#222222 |
surface-elevated |
rust-charcoal |
#222222 |
text-primary |
rust-white |
#FFFFFF |
text-secondary |
rust-light-gray |
#D7D7D7 |
text-tertiary |
rust-silver |
#67737A |
primary |
rust-orange |
#D34516 |
primary-hover |
rust-light-gray |
#D7D7D7 |
accent |
rust-blue |
#28607F |
accent-hover |
rust-light-gray |
#D7D7D7 |
warning |
rust-orange |
#D34516 |
warning-hover |
rust-light-gray |
#D7D7D7 |
error |
rust-orange |
#D34516 |
success |
rust-green |
#61784D |
Brand semantic roles
Colors
| Role | Swatch | Hex |
|---|---|---|
identity |
rust-orange |
#D34516 |
on-identity |
rust-white |
#FFFFFF |
primary |
rust-orange |
#D34516 |
primary-hover |
rust-dark-blue |
#1E2650 |
accent |
rust-blue |
#28607F |
accent-hover |
rust-dark-blue |
#1E2650 |
background |
rust-white |
#FFFFFF |
surface |
rust-off-white |
#F4F4F4 |
text-primary |
rust-dark-blue |
#1E2650 |
text-secondary |
rust-silver |
#67737A |
Typography
| Role | Font role key |
|---|---|
display |
heading |
prose |
body |
code |
mono |
Rules
🛑 error (6)
forbiddenTreatment → logo
- treatments: flipped, rotated, skewed, stretched, recolored, drop-shadow, on-busy-photo
The Rust Foundation Brand Guide explicitly prohibits flipping, rotating, skewing, or otherwise altering the Rust Foundation logo. The gear-and-R mark must retain its proportions and orientation in every reproduction.
numericRange → logo.height
- min:
10 - unit:
mm
The Rust Foundation Brand Guide specifies a minimum reproduction height of 10mm for the primary logo to preserve gear-tooth legibility. Smaller renderings degrade the mark.
colorChoice → roles.colors.identity
- allowed: rust-orange, rust-dark-blue
- forbidden: rust-green, rust-silver
Rust Orange and Rust Dark Blue are the two identity colors named in the Foundation Brand Guide. Rust Silver and Rust Green are reserved for body / sustainability roles and must not stand in as the brand identity color.
contrastRatio → text-primary
- against:
background - minRatio:
4.5 - standard:
WCAG-AA
Rust Dark Blue (#1E2650) on Rust White exceeds 12:1 — well above the WCAG AA threshold for body text.
accessibilityRequirement → *
- standard:
WCAG-AA - criterion:
1.4.3
WCAG 2.1 Success Criterion 1.4.3 (Contrast Minimum) — Level AA. Consumers must not pair tokens that defeat the AA contrast property of the Foundation Brand Guide palette.
enumMembership → trademark.context
- forbidden: implied-endorsement, product-name-prefix
The Rust Foundation Logo Policy distinguishes between logo redistribution (permitted under CC-BY) and trademark use (which requires not implying official endorsement). Logos must not be used in product names or in contexts that suggest the Rust project endorses a third-party offering.
⚠️ warning (2)
contrastRatio → roles.colors.primary
- against:
background - minRatio:
3 - standard:
WCAG-AA-large
Rust Orange (#D34516) on white sits around 4.9:1 — clears AA for body text in most renderings, but consumers should verify against actual rendered weight before using the orange for fine text on light surfaces.
compositionConstraint → roles.colors.primary
- pairsWith: rust-dark-blue, rust-white
- doesNotPairWith: rust-green
Rust Orange pairs canonically with Rust Dark Blue or White backgrounds. Pairing Rust Orange directly with Rust Green breaks the documented identity-vs-supporting role boundary and creates a discordant orange-green clash.
💡 recommendation (1)
fontPairing → typography.heading
- requires:
body - minSizeRatio:
1.5
Rust documentation surfaces use a single humanist sans for both heading and body. Maintaining at least a 1.5× heading-to-body ratio preserves hierarchy without requiring a second family.
Provenance
- Source: https://rustfoundation.org/policies/logo-policy-and-media-guide/
- License:
CC-BY-4.0 - Attribution: The Rust logo is owned by the Rust Foundation and distributed under the Creative Commons Attribution 4.0 license per the Rust Foundation's Logo Policy and Media Guide. The Rust word mark and language identity remain trademarks of the Rust Foundation. This atom is brand-atoms' machine-readable encoding of the published brand guide; no logos or wordmarks are bundled here.
- Imported:
2026-05-18 - Notes: Brand identity values are drawn from the Rust Foundation Brand Guide (rustfoundation.org/brand-guide), which is the current authoritative source. The Foundation's recommended typography is Noto Sans / Noto Serif (freely available via Google Fonts); those families are not yet in the brand-atoms catalog. This atom substitutes the catalog's Inter (humanist sans, OFL-1.1) for prose and Source Code Pro (Adobe's editorial monospace, OFL-1.1) for source code — both honor the Foundation's intent of "freely available, technical, neutral" without bundling a new font atom solely for this brand.
Generated by the brand-atoms converter. Source: [email protected] from the encyclopedia.
Components — same template, themed by Rust
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.
Rust
A clear hierarchy in Rust'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
- Open the brand's resolved spec.
- Apply roles to the component template.
- Render the surface in the brand's identity.
- Audit the output against the typed rules.
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 |
|---|---|---|
| primary | brand color #1 | light + dark |
| accent | brand color #2 | light + dark |
| warning | brand warning | light + dark |
| error | brand error | light + 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
→ rust-blue #28607F accent-hover
→ rust-dark-blue #1E2650 background
→ rust-white #FFFFFF identity
→ rust-orange #D34516 on-identity
→ rust-white #FFFFFF primary
→ rust-orange #D34516 primary-hover
→ rust-dark-blue #1E2650 surface
→ rust-off-white #F4F4F4 text-primary
→ rust-dark-blue #1E2650 text-secondary
→ rust-silver #67737A Typography
code
→ mono Source Code Pro display
→ heading Inter prose
→ body Inter Palette mode mappings (from rust)
Light mode (14 roles)
accent
→ rust-blue accent-hover
→ rust-dark-blue background
→ rust-white error
→ rust-orange primary
→ rust-orange primary-hover
→ rust-dark-blue success
→ rust-green surface
→ rust-off-white surface-elevated
→ rust-white text-primary
→ rust-dark-blue text-secondary
→ rust-silver text-tertiary
→ rust-blue warning
→ rust-orange warning-hover
→ rust-dark-blue Dark mode (14 roles)
accent
→ rust-blue accent-hover
→ rust-light-gray background
→ rust-black error
→ rust-orange primary
→ rust-orange primary-hover
→ rust-light-gray success
→ rust-green surface
→ rust-charcoal surface-elevated
→ rust-charcoal text-primary
→ rust-white text-secondary
→ rust-light-gray text-tertiary
→ rust-silver warning
→ rust-orange warning-hover
→ rust-light-gray Rules (9 typed constraints)
error · 6 rules
forbiddenTreatment logo treatments flipped, rotated, skewed, stretched, recolored, drop-shadow, on-busy-photo The Rust Foundation Brand Guide explicitly prohibits flipping, rotating, skewing, or otherwise altering the Rust Foundation logo. The gear-and-R mark must retain its proportions and orientation in every reproduction.
numericRange logo.height min 10 unit mm The Rust Foundation Brand Guide specifies a minimum reproduction height of 10mm for the primary logo to preserve gear-tooth legibility. Smaller renderings degrade the mark.
colorChoice roles.colors.identity allowed rust-orange, rust-dark-blue forbidden rust-green, rust-silver Rust Orange and Rust Dark Blue are the two identity colors named in the Foundation Brand Guide. Rust Silver and Rust Green are reserved for body / sustainability roles and must not stand in as the brand identity color.
contrastRatio text-primary against background minRatio 4.5 standard WCAG-AA Rust Dark Blue (#1E2650) on Rust White exceeds 12:1 — well above the WCAG AA threshold for body text.
accessibilityRequirement * standard WCAG-AA criterion 1.4.3 WCAG 2.1 Success Criterion 1.4.3 (Contrast Minimum) — Level AA. Consumers must not pair tokens that defeat the AA contrast property of the Foundation Brand Guide palette.
enumMembership trademark.context forbidden implied-endorsement, product-name-prefix The Rust Foundation Logo Policy distinguishes between logo redistribution (permitted under CC-BY) and trademark use (which requires not implying official endorsement). Logos must not be used in product names or in contexts that suggest the Rust project endorses a third-party offering.
warning · 2 rules
contrastRatio roles.colors.primary against background minRatio 3 standard WCAG-AA-large Rust Orange (#D34516) on white sits around 4.9:1 — clears AA for body text in most renderings, but consumers should verify against actual rendered weight before using the orange for fine text on light surfaces.
compositionConstraint roles.colors.primary pairsWith rust-dark-blue, rust-white doesNotPairWith rust-green Rust Orange pairs canonically with Rust Dark Blue or White backgrounds. Pairing Rust Orange directly with Rust Green breaks the documented identity-vs-supporting role boundary and creates a discordant orange-green clash.
recommendation · 1 rule
fontPairing typography.heading requires body minSizeRatio 1.5 Rust documentation surfaces use a single humanist sans for both heading and body. Maintaining at least a 1.5× heading-to-body ratio preserves hierarchy without requiring a second family.
Provenance
- Source
- https://rustfoundation.org/policies/logo-policy-and-media-guide/
- License
CC-BY-4.0- Attribution
- The Rust logo is owned by the Rust Foundation and distributed under the Creative Commons Attribution 4.0 license per the Rust Foundation's Logo Policy and Media Guide. The Rust word mark and language identity remain trademarks of the Rust Foundation. This atom is brand-atoms' machine-readable encoding of the published brand guide; no logos or wordmarks are bundled here.
- Imported
2026-05-18- Notes
- Brand identity values are drawn from the Rust Foundation Brand Guide (rustfoundation.org/brand-guide), which is the current authoritative source. The Foundation's recommended typography is Noto Sans / Noto Serif (freely available via Google Fonts); those families are not yet in the brand-atoms catalog. This atom substitutes the catalog's Inter (humanist sans, OFL-1.1) for prose and Source Code Pro (Adobe's editorial monospace, OFL-1.1) for source code — both honor the Foundation's intent of "freely available, technical, neutral" without bundling a new font atom solely for this brand.