What color do you get when you mix purple and yellow?

Well, if you are trying to dye a pale yellow cotton blouse a deep purple, you will get an ugly gray. That's what happened to me. I liked the blouse, but I don't look good in yellow; I had some purple dye, so I gave it a shot. Then I used a color stripper to remove the purple and the blouse ended up a grayish-lavender. Not the color I was hoping for.