kcolorchooser 4:21.11.90-0ubuntu2 (riscv64 binary) in ubuntu jammy

 KColorChooser is a color palette tool, used to mix colors and create custom
 color palettes. Using the dropper, it can obtain the color of any pixel on
 the screen.
 .
 A number of common color palettes are included, such as the standard Web colors
 and the Oxygen color scheme.
 .
 This package is part of the KDE graphics module.