Red is an astonishing color, underused in many homes because of its bright intensity. Using red in your interior design is an excellent way to set your house apart from other homes, making it memorable to visitors. Red also causes the greatest emotional reaction in humans, reports Empower Yourself with Color Psychology, so red walls can make a dramatic impression.
Red is a surprisingly flexible color that can be made to match with the other warm colors of the color wheel (yellow and orange), other shades of red, green, khaki and brown. By choosing red as your base color or an accent color, you can easily incorporate one or several of these other colors into your interior design to create a fully realized and well-rounded color scheme.
The warm colors -- red included -- are associated with heat, passion, energy and good cheer. In addition, the color red is known to increase metabolism and encourage a good appetite. Red is a color full of vitality and therefore is a perfect color for painting a kitchen or dining room, where a sense of energy is appropriate for the purpose of the room.
Dark red colors, like maroon and brick red, hide some wear and tear that lighter colors don't hide well. Dark smudges and general dirt are more likely to be hidden by the dark color of the walls, whereas with light-colored walls, the smudges and dirt will be more visible. Dark-colored walls work better in high-traffic areas.