I don't understand hex codes ! help me!!!!

Answer 1

A hex color code is a 6-symbol code made of up to three 2-symbol elements. Each of the 2-symbol elements expresses a color value from 0 to 255

Example:-

https://www.w3schools.com/colors/colors_hexadecimal.asp

Answer 2

Try the search feature on top of the discussion forum.
https://www.sololearn.com/Discuss/2906207/?ref=app
https://www.sololearn.com/Discuss/1814466/?ref=app
https://www.sololearn.com/Discuss/1004758/?ref=app