My son picked up a five-gallon pail of wood stain at Home Depot's "oops" table, with the intention of painting our shed. The stain is purple. I don't want a purple outbuilding. My original thought was to add some orange tint to the purple, in hopes of creating a shade of brown. But then my DS painted the most visible parts of the building Wedgewood blue. I normally favor earth tones, especially for exteriors, but the blue looks rather nice. It has a greyish cast to it.

He'd like to use the purple on long back side (it was a bargain, after all), and I'm wondering if I can add something to it to grey it down and make it at least somewhat compatible with the blue. What do you think? Am I dreaming?

Thanks!

Susan