Fluent 2 is Microsoft's modern design system that provides a comprehensive set of design tokens and components. This guide will help you get started with implementing Fluent 2 in your projects.
What is Fluent 2 Design System?
Fluent 2 is Microsoft's design system that emphasizes clarity, efficiency, and beauty. It provides:
- Comprehensive color tokens and typography scales
- Consistent spacing and layout guidelines
- Accessible component specifications
- Dark mode support with carefully chosen color values
- Animation and transition guidance
Why Choose Fluent 2?
- Enterprise-Grade: Trusted by Microsoft and major organizations
- Accessibility Focus: Built with WCAG compliance in mind
- Versatile: Works across web, mobile, and desktop applications
- Consistent: Ensures visual and behavioral consistency
- Modern Design: Clean, minimal aesthetic aligned with current trends
Getting Started with Fluent 2
1. Understanding Design Tokens
Design tokens are the foundation of Fluent 2. They define colors, typography, spacing, and other design properties. Here's how to use them:
/* Using Fluent 2 color tokens */
.button {
background-color: var(--fluent-color-brand-primary);
color: white;
padding: var(--fluent-spacing-m);
border-radius: var(--fluent-border-radius-medium);
}
2. Color System
Fluent 2 provides a carefully crafted color palette for light and dark modes:
/* Light mode (default) */
:root {
--fluent-color-brand-primary: #0078d4;
--fluent-color-text-primary: #242424;
--fluent-color-background-primary: #ffffff;
}
/* Dark mode */
[data-theme="dark"] {
--fluent-color-brand-primary: #60a5fa;
--fluent-color-text-primary: #ffffff;
--fluent-color-background-primary: #1f1f1f;
}
3. Typography
Fluent 2 defines a typography scale for consistency:
h1 {
font-size: var(--fluent-font-size-xxlarge);
font-weight: var(--fluent-font-weight-bold);
line-height: 1.2;
}
p {
font-size: var(--fluent-font-size-base);
line-height: 1.6;
}
4. Spacing
Fluent 2 provides consistent spacing values:
/* Spacing tokens */
--fluent-spacing-s: 8px;
--fluent-spacing-m: 16px;
--fluent-spacing-l: 24px;
--fluent-spacing-xl: 32px;
--fluent-spacing-xxl: 48px;
Building Components
Here's an example of a Fluent 2-compliant button component:
<button class="fluent-button fluent-button-primary">
Get Started
</button>
.fluent-button {
padding: var(--fluent-spacing-m);
border-radius: var(--fluent-border-radius-medium);
font-weight: var(--fluent-font-weight-semibold);
border: none;
cursor: pointer;
transition: all var(--fluent-animation-duration-fast);
}
.fluent-button-primary {
background-color: var(--fluent-color-brand-primary);
color: white;
}
.fluent-button-primary:hover {
background-color: var(--fluent-color-brand-secondary);
}
Dark Mode Implementation
Fluent 2 includes comprehensive dark mode support. Toggle it with a data attribute:
// Toggle dark mode
document.body.setAttribute('data-theme', 'dark');
// All CSS variables automatically adjust based on [data-theme] selector
Best Practices
- Use Design Tokens: Always reference tokens instead of hardcoding values
- Test Accessibility: Ensure sufficient color contrast in both light and dark modes
- Consistent Spacing: Use the spacing scale for all margins and padding
- Responsive Design: Test on multiple screen sizes and devices
- Documentation: Document any custom extensions to the design system
Resources
Conclusion
Fluent 2 provides a robust foundation for building consistent, accessible, and beautiful applications. By leveraging its design tokens and guidelines, you can create professional interfaces that work seamlessly across platforms. Whether you're building for enterprise or consumer applications, Fluent 2 offers the flexibility and polish needed for modern web design.
Start exploring Fluent 2 today and elevate your design system to the next level!