Please can someone help more explain how hexadecimal color values work and how they are identified

Question

Hexadecimal color values

Answer 1

Instead of describing something here, I will send you a link:

https://en.m.wikipedia.org/wiki/Web_colors

Answer 2

Lothar thanks

Answer 3

Emanuel maliaño thanks

Answer 4

#00 00 00 00
R G B Opacity

Answer 5

Thanks i already get it😊

Answer 6

no problem

Answer 7

you can google it to check

Answer 8

Check out Lothar post

Answer 9

#aaaaaa is grey

Answer 10

Thanks