Tokens overview

Tokens are representations of design decisions. They abstract raw values into scalable, meaningful, and readable labels spanning across teams and platforms.

Overview

Design tokens represent repeated decisions throughout a system and provide an avenue to apply them consistently. They replace raw values with meaningful labels that convey intention.

Tokens progress in specificity from raw values to core tokens, semantic tokens, and component tokens.

Tokens apply to a variety of value types, including:

Color
Typography
Spacing
Sizing
Radius
Opacity
Stroke width
Effects

A graphic that moves from values and names leading up to a final blue primary cta button component. From top to bottom reads Raw: #0968F6, Core: blue.core.500, Semantic: background.accent, and Component: btn.container.background.primary.

Token structure

Tokens are structured in a specific order for varying levels of specificity. Individual components and their nested elements can each have tokens if a semantic token isn’t providing enough clarity. This structure helps maintain the integrity of the token system over time.

Object
Component	Element
combobox button form	left-icon right-icon

Base
Category	Behavior	Property
color font spacing size shadow breakpoint	feedback visualization action heading core sem	text size bg weight border letter-spacing

Modifier
Variant	State	Scale	Context
primary secondary tertiary default subtle	enabled hover active pressed disabled	50 100 150 200 600	light dark high-contrast

Applying tokens

Backgrounds and foregrounds

The majority of tokens used are semantic tokens for background and foreground elements. Semantic colors like attention and success have corresponding foreground tokens like on-attention and on-success. This ensures color combinations are used appropriately and remain accessible.

Examples of backgrounds:

Page background
Button container
Banner container

Examples of foregrounds:

Icons
Text

A section alert with token highlights. The background is a vibrant red called “background.attention. The foreground text is “foreground.on-attention”.

Platform agnostic

Tokens are platform agnostic. The names remain similar despite slight alterations to the naming structure. The design library uses dots as separators with all letters lowercase, but can be converted to a preferred platform convention like dashes or camelCase.

Tokens simplify documentation of design decisions and make sharing across teams easier. They establish a common language for styles and intention across all users of the system.

A visual hierarchy graphic. From left to right Figma points to a pill shape with the token “foreground.success” in it. The pill points and branches out to 3 items. From top to bottom is IOS, Android, and {less}.

Theming

A single token can point to different values depending on the context. The context can be a change in device theme, form factor, or accessibility settings.

When a context changes, the reference values are updated automatically and the changes cascade throughout the system.

The background.secondary token points to core.neutral.200 in light mode and core.neutral.800 in dark mode. These core tokens point to #F7F7F7 and #191919, respectively.

Page composition

Here’s an example of how tokens are used throughout a page. Background elements like containers and frames can stack on top of each other. Foreground elements, like text and icons, sit on top of backgrounds. Lastly, border elements include container strokes and dividers.

A UI screen with token pill graphics pointing to elements. “background.secondaryOnElevated” points to an icon button background in the top nav bar. “border.strong” points to a tab underline. “background.secondary” points to a gray background under the top portion of content. A variety of other tokens point to buttons, foreground text, backgrounds, attention and accent colors, and borders.

Change log

Date	Notes
Jun, 2024	Updated to eBay Evo