Quote: Your one "Partridge" might grow up to be Blue. White to Splash breeding will throw all sorts of odd "colors".
Partridge is a color that is not well defined in Silkies. We can't see their feather patterns to make sure we have the right genetics behind them - so any bird that is off colored or "Chipmunk" as a chick is lumped into Partridge. There are three "bases" that cause Chipmunk Patterned chicks - only one is actually correct for Partridge.
If you have two Blue Partridge - and they STAY looking like Partridge (one looks like it may, the other may not) - the Blue Partridge crossing will get you Blue, Regular and Splash Partridge. However... since those two came out of WHITE - you will also get White chicks (both chicks carry one copy of Recessive White).
Either way, they sure are cute!
The hard part about breeding the Partridge is getting the colors right - and correct where they belong. Males are supposed to have black chests (or blue for Blue Partridge) but I do not see that very often. They are supposed to have RED on the boys, but that is also rare...
Well stated; better than my reply...