Combine orzo, wild rice, orange bell pepper, red bell pepper, corn, currants, and red onion together in a large bowl.
Blend vegetable oil, sugar, white wine vinegar, cider vinegar, minced onion, white pepper, paprika, garlic powder, and 1 pinch salt together in a blender or food processor until smooth.
Mix pecans, almonds, and parsley into orzo mixture.
Drizzle enough dressing to coat salad; toss to evenly coat. Season with salt and black pepper.