There are quite a few color picker applications for Ubuntu Linux. Colorpicker is another one written with Electron, and works in Linux, Windows, and Mac OS.
The colorpicker tool features:
- pin app window to the foreground.
- A picker opens an eyedropper to pick a color from your desktop
- Colorsbook, a color manager
- show three bar of shading — hue bar, natural bar and lightness bar
- Toggle Opacity range
- Show colors from the clipboard
How to Install ColorPicker in Ubuntu:
The software is available in Ubuntu Software as Snap package (runs in sandbox). Simply search for and install colorpicker app
and enjoy!
For choice, it offers AppImage for Linux, exe for Windows, dmg for macOS, which are available to download at Github releases page under Assets section.