This is a question which has always been floating around my brain when putting the final touches on a website. (And I couldn't find much about it on the web)
When using social icons in the context of sharing content, e.g. sharing a blog post, and Email is one of the methods of sharing, what colour should the Email icon be when all the other icons are coloured by their branding (somewhat)?
Does anyone have any examples and/or rationale for using a particular colour, if one exists universally for 'Share by email'?