How do I permanently change the color of my signature in Outlook?

[DJK]

My signature keeps coming up yellow. I have tried going to the signature
formatting, and it says black, but it does not show up black on my emails.

 

[Kathleen Orland]

Are you using stationery?

 

[Brian Tillman [MVP - Outlook]]

My signature keeps coming up yellow. I have tried going to the signature
formatting, and it says black, but it does not show up black on my emails.

I edited my signature's HTML file with Notepad and entered

<FONT face="Arial" color="black" size=2>

just above the text of the signature.