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Marc Rossmann
Marc Rossmann

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Dark Mode Meets Light Mode—Live with Chroma Chameleon

Chroma Chameleon is a powerful web-based utility designed to streamline the process of creating and visualizing CSS color themes. It presents a side-by-side comparison of a user interface in both dark and light modes, offering a comprehensive preview of how color choices will appear in a realistic application setting.

Users can live-edit individual HSL color values for a wide range of CSS variables—from backgrounds and text to semantic colors for primary, success, and danger states. As changes are made, the corresponding UI mockup updates instantly, providing immediate visual feedback. For rapid prototyping, users can also paste a full block of CSS variables to apply an entire theme at once.

The application is designed to be a practical tool for ensuring aesthetic consistency and accessibility across different UI components and color modes.


Chroma Chameleon Preview Screen


  • 🎨 Dual-Theme Preview: Simultaneously view and interact with both a light and dark mode version of a sample UI.
  • ⚡ Live Color Editing: Modify HSL values for individual CSS theme variables with changes reflected instantly.
  • ** swatch Visual Color Swatches:** Each input field is accompanied by a color swatch that displays the current color.
  • 📋 Bulk Paste & Apply: A dedicated text area allows users to paste a complete set of CSS variables to rapidly apply a new color scheme.
  • 🧩 Comprehensive UI Mockup: The preview includes a rich set of components like headers, buttons, alerts, tables, and pop-ups.
  • ❓ Interactive Instructions: A helpful pop-out guide explains the core features to new users.
  • 📱 Responsive Design: The layout is fully responsive, adapting seamlessly from desktop to mobile devices.

Try Chroma Chameleon here!

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