Changing colour of social links

Hi,

I’ve been able to use a CSS manager plugin to make a few basic changes to my site, but I can’t work out how to change the colour of the social link icons. My knowledge of css is a bit basic, and the customizr style sheet doesn’t provide any clues as to what the correct code to use for ‘social link icons’ would be. Could you help me out, please?

My site url is: https://mme-b-boutique.com

Many thanks,

Beth.