Fresh drywall tends to soak up bold paint colors and alter their appearance. That is why it helps to have an undercoat that is designed to handle the stronger hues. Gripper Grey primer is such a product. Designed for use under dark and vibrant shades, the product allows paint to show its true color. It adheres to any surface and can be tinted nine shades of gray, the company says. Cost: $16 per gallon. ICI Paints. 800-454-3336.