Foundations

Design tokens.

Every token in the system, read live from colors_and_type.css via CSS custom properties. Hex values resolve at runtime, so what you see here matches what your app gets when you import @ossrandom/design-system/styles.css. Switch the global theme toggle to see surface tokens flip.

Color · Brand red

Signal Red is the only accent. The full red ramp is reserved for charts and edge cases — production UI should reach for --accent, --accent-hover, --accent-press, --accent-soft.

brand-red-50

brand-red-100

brand-red-200

brand-red-300

brand-red-400

brand-red-500

brand-red-600

brand-red-700

brand-red-800

brand-red-900

Color · Brand gray

Cod Gray ramp drives every neutral surface and ink shade. Pulls from --bg-* and --fg-* at runtime.

brand-gray-50

brand-gray-100

brand-gray-200

brand-gray-300

brand-gray-400

brand-gray-500

brand-gray-600

brand-gray-700

brand-gray-800

brand-gray-900

Accent · semantic

Action color, hover/press states, and the soft tint behind selected items.

accent

accent-hover

accent-press

accent-soft

accent-fg

Surface & ink

Theme-aware tokens — these flip when data-theme swaps. The chips below resolve through :root, [data-theme="light"], and [data-theme="dark"] blocks.

bg-0

bg-1

bg-2

bg-3

fg-1

fg-2

fg-3

fg-4

border-1

border-2

border-3

Typography · families

Three families. Display for impact, sans for body, mono for code & micro labels.

display

Bricolage Grotesque

sans

The quick brown fox jumps over the lazy dog. 0123456789

mono

function ƒ(x: T): U { return x as unknown as U; }

Typography · scale

Each row uses its corresponding --fs-* + --lh-* + --ls-* custom properties.

display

Strongly typed UI.

h1

Component headline

h2

Section heading

h3

Subsection title

h4

Inline heading

body

Body copy at the default reading scale — comfortable for sustained text.

small

Compact metadata, secondary captions, small footers.

micro

MICRO LABEL · MONO · UPPERCASE

code

const cx = (...c) => c.filter(Boolean).join(' ')

Spacing

A 4px-stepped scale plus half-steps where the grain of an interface needs them. Bars below render at the literal pixel value.

--space-1

--space-1.5

--space-2

--space-2.5

--space-3

--space-4

--space-5

--space-6

--space-8

--space-10

--space-12

--space-16

--space-20

--space-24

Radii

Tight by default. radius-sm (4px) is the system default — Linear-style.

radius-xs

radius-sm

radius-md

radius-lg

radius-xl

radius-2xl

radius-full

Shadows

Two-layer shadows for depth without haze. Darker, smaller layer for the edge; broader, softer layer for the diffuse halo.

shadow-xs

shadow-sm

shadow-md

shadow-lg

Motion

Each box loops through translate + opacity using its labeled duration and easing. Click ▷ Replay to trigger.

instant · ease-out-quart

fast · ease-out-expo

base · ease-in-out

slow · ease-spring

TypeScript types

Imported from @ossrandom/design-system/tokens. Use these to constrain props at compile time.

Type	Value
`BrandColor`	`\| "signal-red" // #E60000 — primary action, live state, errors \| "signal-red-700" // #B30000 …`
`SemanticColor`	`\| "success" // green-ish via signal-red? we use mono — runtime cod-gray w/ filled dot \| "warn…`
`ThemeMode`	`"light" \| "dark"`
`SpaceSize`	`"xs" \| "sm" \| "md" \| "lg" \| "xl" \| number`
`Radius`	`"none" \| "sm" \| "md" \| "lg" \| "pill" \| "circle" \| number`
`Shadow`	`"none" \| "sm" \| "md" \| "lg" \| "overlay"`
`FontFamily`	`"sans" \| "mono"`
`FontWeight`	`400 \| 500 \| 600 \| 700`
`TypeScale`	`\| "display-xl" \| "display-lg" \| "display-md" \| "h1" \| "h2" \| "h3" \| "h4" \| "body-lg" \| "body-…`
`Size`	`"xs" \| "sm" \| "md" \| "lg"`
`Density`	`"comfortable" \| "default" \| "compact"`
`Direction`	`"horizontal" \| "vertical"`
`Axis`	`"x" \| "y" \| "both"`
`Align`	`"start" \| "center" \| "end" \| "baseline" \| "stretch"`
`Justify`	`"start" \| "center" \| "end" \| "between" \| "around" \| "evenly"`