I am using a VBA code that sends emails

Hi
I am using a VBA code that sends emails
In a using a string that stores text in a string named Temp_Body then I use a HTMLBody for the text that will be sent in the email
Here is the code that I use:

HTMLBody = Temp_Body & vbNewLine & vbNewLine & RangetoHTML(rng)

Is there anyway I can change the color and font of the Temp_Body?

Thank you in advance for your help.