qualpal is a C++ library for automatically generating qualitative color palettes, maximizing perceptual distinctiveness and supporting color vision deficiency simulation.

Features

Perceptually uniform color selection (DIN99d color space)
Color vision deficiency simulation for accessible palettes
Flexible builder-style API
Fast algorithms for large color spaces

CLI Interface

qualpal also provides a command-line interface (CLI) for generating color palettes from the terminal. This allows users to quickly generate color palettes without the need for a full C++ application. Here's a quick example of how to use the CLI:

qualpal -n 5 -i colorspace "0:360" "0.4:0.8" "0.3:0.7"

You can find examples of how to use the CLI in the examples section.

R Package

The qualpal library is also packaged for R as qualpalr, which provides a similar API for generating color palettes from R. This allows users to easily integrate qualpal into their R workflows, especially for data visualization tasks.

Next Steps