Above is a colour palette, the two central colours are the main beat colours and will definately be included. I think the just off black is a great colour and works really well with the main two colours. The light pink makes it a bit warmer whilst the blue makes it very sterile. From left to right the Hex numbers are 423749(black), e6057f(bright pink), 0061a7(dark blue), 00a0ff(bright blue), fcedfd(light pink background) and dcedf6(light blue background). If I do use the light pink as a background it might be too much and may need a texture to break it up and definately a vinette to make it softer and more focused at the content.