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Dynamic Theme Generator

Generate adaptive themes for light, dark, and custom UI modes. Define base brand colors, preview dynamic styles, and export theme tokens as CSS variables or JSON for design systems and frameworks.

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Dynamic Theme Generator

Create and customize color themes with CSS variables for light and dark modes

Theme Mode

Core Colors

Primary #3498db
Secondary #2ecc71
Background #ffffff
Text #2c3e50

Status Colors

Success #27ae60
Error #e74c3c

Theme Actions

UI Preview

Card Title

This is a card component with the current theme styles applied.

Success message
Error message
Primary
Secondary
Background
Text
Secondary BG
Secondary Text
Success
Error

Generated CSS

How to Use This Tool

  1. Select light or dark mode to preview your theme
  2. Customize the core colors (primary, secondary, background, text)
  3. Adjust status colors for success and error states
  4. Preview how components will look with your theme
  5. Copy the generated CSS variables for use in your project
  6. Export your theme to save it or import an existing theme

Implementation Guide

  • Add the generated CSS variables to your :root selector
  • Use the variables throughout your CSS (e.g., color: var(--text-primary))
  • For dark mode support, include the prefers-color-scheme media query
  • Test your theme with actual components to ensure proper contrast
  • Consider adding a theme switcher for user preference

Best Practices

When creating themes, ensure there's sufficient contrast between text and background colors. Use your primary color sparingly for key interactive elements. Test your theme in both light and dark modes to ensure readability. Consider adding subtle transitions when switching between themes for a smoother user experience.

Key Features

Light & Dark Mode Presets

Generate color tokens for light, dark, or custom themes with a single configuration.

Semantic Token Naming

Use tokens like `--color-primary`, `--bg-surface`, and `--text-muted` for scalable design systems.

Tone Generator

Automatically generate color scales (100–900) for base colors.

CSS & JSON Export

Export your complete theme structure in CSS custom properties or JSON object for frameworks like Tailwind, Chakra, or Material UI.

Live Component Preview

Instantly see how your theme looks on buttons, cards, backgrounds, and text.

Frequently Asked Questions

It generates theme tokens — a set of named colors that define the look of your UI across light, dark, or other themes.

Yes! The tool provides a real-time preview on sample UI elements so you can see how your theme looks in context.

You can export your themes in CSS variable format or as structured JSON for direct use in design systems.

Yes, in addition to light and dark, you can create custom modes like high contrast or pastel using manual overrides.

Yes, the Dynamic Theme Generator is completely free to use in your browser with no sign-up required.

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