Why does HTML think “chucknorris” is a color?

Question

How come certain random strings produce colors when entered as background colors in HTML? For example:

Answer 1

chucknorris starts with c, and the browser reads it into a hexadecimal value.

Because A, B, C, D, E, and F are characters in hexadecimal.

The browser converts chucknorris to a hexadecimal value, C00C00000000.

Then the C00C00000000 hexadecimal value is converted to RGB format (divided by 3):

C00C00000000 ⇒ R:C00C, G:0000, B:0000

The browser needs only two digits to indicate the colour:

R:C00C, G:0000, B:0000 ⇒ R:C0, G:00, B:00 ⇒ C00000

Finally, show bgcolor = C00000 in the web browser.

Here's an example demonstrating it:

  

    
chucknorris
    
c00c00000000
    
c00000