I don’t know if it will affect their color or performance if I wash them all together.
it shouldn’t effect performance at all
not sure about the colours bleeding though. You could wash one of each together as a test
or if you’re really worried, just wash them separately.
Just wondering, why wash them?
It shouldn’t matter as far as color fastness goes. My experience w/washing string is that it’s not worth it unless you are really hard up for string. The cotton string in particular is usually past it’s lifetime in any event and will likely break quickly. The rest of it will probably be ok but it will still be lifeless. I like the springiness of new string. Washing does not restore that.