Information: Wright-Giemsa Stain Kit is intended to be used for differential staining of blood smears, bone marrow and blood parasites. Erythrocytes: Pink-Tan Leukocytes: Blue-Purple Neutrophils: Light Purple granules in cytoplasm. Eosinophils: Bright Red-Red-Orange granules in cytoplasm. Basophils: Deep Purple granules in cytoplasm. Platelets: Violet-Purple granules in light blue cytoplasm.