change textcolor in footer

I want change the textcolor at my testside on the left bottom in the footer of AGB, Impressum e.g.
I have tried to change the class
.col-md-6 {
but nothing changed
hope somebody can help me.
kindly regads

Hello there,

I hope you are doing well today.

Could you please provide a link to your website along with an image of the area you want to change so that I can inspect it?

Best Regards,