Great examples of using limited colours effectively. I am keen on using 2 colours for the promotion of my font in Brief 01. The red is too bold for me to use it as a background, however the green is paler and so my font in a contrasting colour over the top would work better. I need to use a colour to stand out as I want my promotional products to show off the font to its full potential.
This post also demonstrates how effectively a range can work. 2 different editions of a similar publication such as different issues. I especially like how the layout is the same, but the content and colours used are different. The identity is formed out of layout and not specific colours.