A few years ago, I was contracted out to work with the Ministry of Labour (as an Art Director and Senior Designer), to develop workplace fairness posters, which are seen all over work place bulletin boards/offices across the province (you're welcome). I was tasked to create the branding and layout for these iconic posters. I developed the colour schemes, fonts, layout, and copy/messaging. This was a tedious task/project that went through many revisions.
Colour and Branding Guidelines