Color scheme
In color theory, a color scheme is the choice of colors used in various artistic and design contexts. For example, the “Achromatic” use of a white background with black text is an example of a basic and commonly default color scheme in web design.
Color schemes are used to create style and appeal. Colors that create an aesthetic feeling when used together will commonly accompany each other in color schemes. A basic color scheme will use two colors that look appealing together. More advanced color schemes involve several related colors in “Analogous” combination, for example, text with such colors as red, yellow, and orange arranged together on a black background in a magazine article. The addition of light blue creates an “Accented Analogous” color scheme.
— Wikipedia
I use onedark colors scheme in configuration files of many used by me programs.