Color Tools

Colors:

Coolors - website, Color palette generator

Color Picker online - website, all you need color picker and converter

Color Pick - itch.io, app, color picker for windows

PowerToys - free, app, microsoft bloat that has many functions and a colorpicker

Hew's dev notes - website, converter, RGB/hex to percentage

ShareX - installable or portable app, open-source, screen capture app with color picker