Abstract: In an indexation method, an average color or a statistical distribution of colors in an image is determined by providing a set of coordinates in a multidimensional color space (80). The set of coordinates of each color is reduced to a level of Hue if the color verifies a first condition, i.e. the color is considered a true color (81), and to a level of Brightness if the color verifies a second condition, i.e. the color is considered a gray color (82). Indexation data for indexing the image includes the level of Hue or Brightness resulting from each color. The indexation method is used in a search method for searching a collection of graphic elements. An input specifies a desired color. A corresponding search query pertains to a level of Hue or a level of Brightness if the desired color includes a true color, or a gray color respectively.