How to Use Hex Codes in Gmail to Show Smiley Faces. Using Gmail is a convenient way to keep in touch with your clients and employees.

Hex codes are especially useful for matching colors in an Illustrator document to those on a Web page, as both HTML and CSS use hexadecimal codes to specify colors.

Anyone who’s built a webpage has encountered hexadecimal colors–the six-digit codes that identify one of 16,777,216 different colors you encounter on the web. It’s easy enough to identify ...

Chrome's built-in Color Picker allows you to see the HEX code, RGBA values, HSLA values, HWBA values, ICHA values. Learn how to use it.

The strings “1f5d386” and “1c9b9ca” do not look like the integer hash codes many of us are used to seeing because of their hexadecimal representation.

Hex codes are a simple, unambiguous way to designate colors in digital media. However, going from a color in your head to a hex code can be difficult for the unpracticed.