HTML Colors - HTML Color Types & Usage - GeeksforGeeks
How to use HSL color in CSS like a pro
Flexible colors and themes for data visualizations, by Miru
Custom Colors — Inkscape Beginners' Guide 1.0 documentation
CSS RGB, RGBA, HEX and HSL Colors - CSS for Beginners - Class 5 PDF Download
Flexible colors and themes for data visualizations, by Miru
HTML Color Codes HEX, RGB, RGBA, HSL and HSLA values
Color Table Editor
What is the color of Transparent Green?
Ultimate Guide for a Good UI: Color, by Jake Park