What is the color code for transparency in CSS?

Question

Can anyone tell me what is the color code for transparency in CSS like white = "#FFFFFF"? As I am using following code, to convert the color codes into int:

Color color = ColorTranslator.FromHtml(hex);
return (int)((color.R << 16) | (color.G << 8) | (color.B << 0));

Answer 1

There is no hex code for transparency. For CSS, you can use either transparent or rgba(0, 0, 0, 0).

Answer 2

Or you could just put

background-color: rgba(0,0,0,0.0);

That should solve your problem.