Sounds like a good plan :)
If you understand some duck genetics, then you have a good start. Many of the basic things are the same (like the idea of genes coming in pairs, with one inherited from each parent; and the idea of dominant vs. recessive genes.)
With chicken color genes, I would say...
You can definitely breed the Blue Partridge with the Partridge. They should produce about 50% chicks of each color.
The Blue Buff will probably work best bred to a Buff or to another Blue Buff.
If the blue is blue all over (not the blue version of some other pattern), it will do best bred to...