Ana mendieta uses as an artistic medium in her work "untitled" (3.9.11).

In Untitled (Siluetas Series, 1976), Ana Mendieta made a human silhouette in the sand. She then added red pigment on it. The series of photographs she captured represented the decaying of the human body as the waves began to take away the sand until there was no trace of the silhouette left.

yellow and blue because thats what i remember, im not sure tho