Ensure your website is usable by people with different types of color vision deficiencies (like colorblindness). One way to address this is by using color palettes that are designed to be distinguishable by those with common color vision impairments (e.g., red-green colorblindness). Additionally, provide a feature that lets users switch between different modes, such as “Colorblind Mode” or high-contrast schemes.

When dealing with large datasets (e.g., high-resolution heatmaps or scientific visualizations), performance can degrade, especially on lower-end devices. To mitigate this, consider implementing techniques like lazy loading or virtual scrolling, which only render the visible portions of the colorbar or data at any time. On the backend, optimize data processing by using efficient algorithms and reducing unnecessary recalculations. For instance, you can use Web Workers to offload heavy processing tasks from the main thread, ensuring the UI remains responsive.