Uterine tissue is displayed in the image.
The red blood cells (RBCs) are the orange-pink clusters.
The connective tissue, which is interspersed throughout the tissue, is staining light pink.
The tissue that is staining darker pink is smooth muscle.
The purple staining is the nuclei. Note the lack of uniformity of these cells, especially in the right portion of the picture. This indicates a neoplasm of some kind.