How many colors on HTML code

i’m new in HTML
so the colors are starting from #000000 and end into #ffffff
so is that mean every color is a digit combination from
0123456789 & ABCDEF
if yes, so many combinations are there? How to calculate it?
Thanks. 
That’s not a question about Notepad++.
This is a forum to discuss Notepad++ features, quirks, howto’s, etc.
Please find a more appropriate forum on which to ask your question. 
Hi, @coinminer and All,
You could start with this excellent tutorial about colors :
https://www.w3schools.com/colors/default.asp
Best Regards,
guy0038

This post is deleted! 
@guy038 said in How many colors on HTML code:
You could start with this excellent tutorial about colors :
thanks alot

@AlanKilborn said in How many colors on HTML code:
That’s not a question about Notepad++.
This is a forum to discuss Notepad++ features, quirks, howto’s, etc.
Please find a more appropriate forum on which to ask your question.sorry, wrong number!!