In this tutorial, we will explore the regular expression used for validating hexadecimal color values. This type of regex is commonly used in web development to ensure that color codes are correctly formatted.
The regex /^#?([a-f0-9]{6}|[a-f0-9]{3})$/ is designed to match valid hexadecimal color codes. These codes can be either 3 or 6 characters long and may optionally start with a #.