Official website

of the Commonwealth of Pennsylvania

Keystone Design System

Foundations

Foundations are the visual elements needed to create engaging layouts and end-to-end user experiences.

Foundations of the Keystone Design System

These foundations support our entire design system. Learn more about each concept and find relevant resources.

Color

Color is a practical and emotional tool. It conveys personality, sets a tone, attracts attention, and indicates importance.

Color

Design tokens

Our visual design uses consistent palettes of typography, spacing, color, and other elements. Design tokens make it easy to apply those palettes to your project.

Design tokens

Elevation

Elevation is the relative distance between two surfaces along the z-axis. Elevation styles create depth and focus in user interfaces.

Elevation

Iconography

Icons represent items and ideas in a simple graphic format. They help communicate with universal understanding.

Iconography

Layout grid

Consistent layout principles allow designers and developers to efficiently build user-friendly experiences across devices and screen sizes.

Layout grid

Typography

Typography is a deliberate system of letters, numbers, and characters. Good typography ensures legibility, clean aesthetics, and a visually defined information hierarchy.

Typography