Nuclei
blue to blue black
Karyosome
dark blue
Cytoplasm, proteins in edema fluid
pale pink
RBCs, eosinophilic granules, keratin
bright orange-red
Basophilic cytoplasm, plasma cells, osteoblast
purplish pink
Cartilage
pink or light blue to dark blue
Calcium and calcified bone
purplish blue
Decalcified bone matrix, collagen, osteoid
pink
Muscle fibers
deep pink