When I did mine (and I did have to bleach it, because my natural color is very dark), I used Manic Panic’s Pretty Flamingo with a touch of Electric Lava, and diluted it with Virgin Snow. Since your hair is already ginger (and since you said “washed out” I’m assuming it’s fairly light), you should be able to get away with just using pink. I think the Pastel Pink Crazy Colour would work well (again, so long as your hair’s light enough), since it’s already pretty peachy. You might want to add a bit of the Carnation Pink as well, to help the pink stand out more.
Hope this helps! Send pics :)