Fontello Icons – change colors

Hi guys,
I have got 3 Fontello social icon in the footer and in the header with classic colors gray and red on the mouse over.

Now I would like to add the same icons in the sidebar of my blog but with the original colors of the social media. Example: Linkedin “blue”, Twitter “light blue”, G+ “orange” etc.

How can I customize the social Icon just for that 3 icon that I add on the blog sidebar?
Or do you know if Fontello has the classic social media icons with original colors?
Or any other solution?

I have already read an other topic about fontello but I didn’t find the answer because I just wanna custom the icon in the widget of the blog sidebar.(https://support.ishyoboy.com/forums/topic/changing-color-of-social-media-icons/)

Thank you for your support.