Red, as an attribute color, is one of the primary colors in the RGB color model. It is also considered a warm color, often associated with passion, energy, and danger. In the context of branding, red can evoke a sense of urgency or importance. In art, red is used to convey emotions like love, anger, or violence. It is a color that is highly visible and can be found in nature, such as in the flowers of a rose or the sunset sky.