Hematoxylin and Eosin (H&E): The most widely used stain; hematoxylin stains nuclei blue, and eosin stains cytoplasm pink. Periodic Acid-Schiff (PAS): Stains carbohydrates and mucosubstances magenta. Masson's Trichrome: Differentiates between muscle (red), collagen (blue), and fibrin (green). Wright's Stain: Commonly used for blood smears, stains various blood cells different colors.
