between strong and weak colors. A visual representation of chromatic scale is observable through the color wheel that uses the primary colors. Space (positive and Negative space) Space refers to the perspective (distance between and around) and proportion (size) between shapes and objects and how their relationship with the foreground or background is perceived. There are different types of spaces an artist can achieve for different effect. Positive space refers to the areas of the work with a subject, while negative space is the space without a subject. Open and closed space coincides with three-dimensional art, like sculptures, where open spaces are empty, and closed spaces contain physical sculptural elements. Texture Texture is used to describe the surface quality of the work, referencing the types of lines the artist created. The surface quality can either be tactile (real) or strictly visual (implied). Tactile surface quality is mainly seen through three-dimensional works, like sculptures, as the viewer can see and/or feel the different textures present, while visual surface quality describes how the eye perceives the texture based on visual cues. Value Value refers to the degree of perceivable lightness of tones within an image. The element of value is compatible with the term luminosity, and can be "measured in various units designating electromagnetic radiation". The difference in values is often called contrast, and references the lightest (white) and darkest (black) tones of a work of art, with an infinite number of grey variants in between. While it is most relative to the greyscale, though, it is also exemplified within colored images. Mark making and materiality Mark making is the interaction between the artist and the materials they are using. It provides the viewer of the work with an image of what the artist had done to create the mark, reliving what the artist had done at the time. Materiality is the choice of materials used and how it impacts the work of art and how the viewer perceives it. See also Style (visual arts) Principles of art Perspective (graphical) Visual design elements and principles References Visual arts theory