Brand system
Quant Fun brand kit
Download the official assets, copy production color tokens, and keep every Quant Fun surface visually aligned.One edit, every surface
The manifest behind this page also emits the product's runtime color variables. Update ui/lib/brand-kit.ts and the generated CSS, docs swatches, and shared interface tokens stay aligned.
Logo & artwork
Use these checked-in originals. Do not rebuild the mark from a screenshot or export a compressed copy from a social post.
Core colors
Lime is the identifying signal, not a background wash. Let neutrals do most of the work so active states remain easy to find.
--brand-signalPrimary actions, live state, and the defining brand signal.
--brand-cyanMarket data, connected systems, and informational emphasis.
--brand-blueSelection, focus, and secondary product actions.
--brand-orangeOrder intent, attention, and active workflow moments.
--brand-redErrors, destructive actions, and negative outcomes.
--brand-greenSuccess, positive state, and completed checks.
--brand-obsidianDark fields, top bars, and high-contrast lockups.
--brand-whiteClean surfaces and inverse type.
Interface themes
Theme roles keep components semantic. Copy a value for design work, or use the token in product code so light and dark mode stay paired.
Typography
Build the logic.
Open fontEvery decision should remain readable.
Open fontSIGNAL → DECISION → ORDER
Open fontVoice & feel
Explicit
Show the state, source, and boundary. Never imply a result the product cannot prove.
Technical, not cold
Use precise language and data-rich visuals without making the experience feel inaccessible.
Energetic with purpose
Reserve the brand signal and motion for actions, live state, and moments that deserve attention.
Quick usage rules
- Keep the square mark intact with comfortable clear space.
- Use sentence case and make evidence more prominent than claims.
- Pair bright accents with Obsidian or quiet neutral surfaces.
- Stretching, recoloring, redrawing, or cropping the mark.
- Using lime for every heading, panel, and decorative flourish.
- Presenting simulated, dispatched, or pending results as final.
.primary-action {
background: var(--brand-action);
color: var(--brand-action-ink);
}Ready to copy

