title: Convert RGBA color to HTML color code
body: <p>I have a color picker in my application that users can use to pick colors of certain objects that the application outputs. The color picker is outputting the color chosen in RGBA format. However, I need the HTML color code. I need to be able to convert RGBA, without knowing the color ahead of time, to HTML and use it as a string later. How would I go about doing this?</p>