Email
^[\w.-]+@[\w.-]+\.[a-zA-Z]{2,}$
URL
https?://[^\s/$.?#][^\s]*
IPv4 Address
^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$
Hex Color
#([0-9a-fA-F]{3}){1,2}\b
ISO Date
^\d{4}-\d{2}-\d{2}(T\d{2}:\d{2}(:\d{2})?)?
UUID
\b[0-9a-f]{8}-...-[0-9a-f]{12}\b
US Phone
(\d{3})[-.\\s]?(\d{3})[-.\\s]?(\d{4})
HTML Tag
<([a-zA-Z]\w*)\b[^>]*>(.*?)</\1>