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TP·106.2
#10 of 34 · Colour palette tools

qualpal

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At a glance

qualpal is ranked #10 of 34 in colour palette tools on ThatPainter. It runs on Linux, macOS, Web, Windows.

Compared on colour palette tools

Free plan
Yesjolars.github.io
Palette methods
generatejolars.github.io

Facts

Purpose
Qualpal is a C++ library for generating qualitative color palettes with maximum perceptual distinctiveness, especially for data visualization.jolars.github.io · 4 Oct 2026
Palette inputs
It accepts RGB colors, HSL or LCHab color spaces, and predefined palettes as inputs.jolars.github.io · 4 Oct 2026
Color accessibility
It simulates color vision deficiencies using the Machado et al. model and supports deuteranomaly, protanomaly, and tritanomaly.jolars.github.io · 4 Oct 2026
Background color
You can specify a background color so generated colors are selected to remain distinct from it.jolars.github.io · 4 Oct 2026
Palette extension
The library can extend an existing palette while keeping specified colors fixed.jolars.github.io · 4 Oct 2026
CLI
Qualpal includes a command-line interface for generating and analyzing palettes.github.com · 4 Oct 2026
Web app
A browser-based web app generates palettes but has slightly limited functionality compared with the library and R package.jolars.github.io · 4 Oct 2026
R integration
The project provides an R package called qualpalr for generating palettes in R workflows.jolars.github.io · 4 Oct 2026
Python integration
The project README lists a Python package called qualpal.github.com · 4 Oct 2026
Platforms
Prebuilt binaries are available for Linux, macOS, and Windows.github.com · 4 Oct 2026
Requirements
Building from source requires CMake 3.15 or later and a C++17-compatible compiler; OpenMP is optional for parallelization.github.com · 4 Oct 2026
Algorithm
The algorithm uses a heuristic based on farthest-point sampling and describes its selected colors as approximately maximally distinct.jolars.github.io · 4 Oct 2026
Limit
Qualpal does not consider aesthetic factors such as color harmony or complementary colors when choosing colors.jolars.github.io · 4 Oct 2026
License
The source repository states that Qualpal is available under the MIT License.github.com · 4 Oct 2026

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Sources