Convert your HEXA color format to RGB format.
Convert your HEXA color format to RGBA format.
Convert your HEXA color format to HSV format.
Convert your HEXA color format to HSL format.
Convert your HEXA color format to HSLA format.
Take an IP and try to look for the domain/host associated with it.
Get approximate IP details.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Make sure your passwords are good enough.
Get the gravatar.com globally recognized avatar for any email.
Get all possible details about a domain name.