What is this tool?
A web tool for generating and adjusting distinguishable color palettes for data visualization. It creates highly distinguishable color sets by taking human color perception (hue, saturation, lightness, etc.) into account.
Features
- Color palette generation…Automatically generates easy-to-distinguish color combinations based on the specified number of colors.
- Color property adjustments…Design custom palettes by specifying ranges for hue, chroma (saturation), and lightness.
- Color vision deficiency support…Capable of generating palettes that accommodate color vision diversity (color vision deficiency).
- Diverse output formats…Retrieve generated palettes as JSON, CSS, RGB/HEX lists, JavaScript code, and more.
How to use
- Set generation parameters…Specify the number of colors, hue range, and saturation/lightness constraints for the palette.
- Generate the palette…Colors are listed based on your settings.
- Customize and adjust…Fine-tune individual colors or overall distribution to optimize visibility and color balance.
- Export and use…Export in JSON, CSS, JavaScript, and other formats for use in data visualizations.

