trying to make red icing but not getting a real good red used almost a whole bottle of wilton any suggeston's.
ANot sure what shade u currently have but buttercream will get darker automatically it's exposed for a while.
Make sure to use No Taste Red!
To get a really deep red I add brown. Depending on the cake I sometimes just add cocoa powder. Always make it at least a few hours in advance (or over night) to let the color mature.