Setting Hyperlinks & Formatting in Script task

How to set hyperlink to a text which will is actually appended to original texts. 

The texts are combined for framing body content of a mail.

my code goes like this 

....

StringBuilder sb = new StringBuilder();

String Body;

sb.Append("The following are the values").AppendLine();

sb.Append("Values .....").AppendLine();

sb.AppendLine();

sb.Append("Thanks,").AppendLine();

sb.Append("Amin - Team"); --> Here i need to link our website address to 'Admin - Team'. Also need to display this text in blue color

Body = sb;

.........

While the mail is sent the user should be able to click on 'Admin - team' to access the website. Please let me know how i can change the color & set the website address as hyperlink ?

Thanks !

--------------------------- Radhai Krish | Golden Age is no more far | --------------------------