HTML TUTORIALS
Online Tools: Color Selector with Opacity
The HEX, RGB, HSL, and Alpha Color Picker is a free online tool for selecting colors from a palette or entering color values manually. It supports HEX, RGB, and HSL formats, along with alpha transparency values, including 8-digit HEX codes.
See Also:
Color Format Converter
px-pt-%-rem Units Calculator
HTML Editor
Color Tint & Shade Generator
Color Palette Generator
CSS Gradient Tool