cyto cell nucleus plasm granules______________________________________ 1 erythrocytes pale green 2 platelets lavender red purple 3 neutrophils red brown cream color red brown 4 lymphocytes red brown pale blue rare red 5 monocytes red brown lavender red pink 6 eosinophils red brown colorless bright green 7 basophils red brown colorless red purple 8 megakaryocytes red brown purple red crimson 9 plasma cells red brown blue 10 macrophage red brown gray yellow brown green11 proerythroblasts red brown deep blue 12 normoblasts red brown blue gray green13 promyelocytes red brown blue orange red14 neutrophilic red brown yellow orange redmyelocytes15 neutrophilic red brown yellow orange brownmetamyelocytes16 band red brown cream color orange brown17 mast cells red brown colorless red purple______________________________________ in the erythroblast series the range in color is from blue in the earliest erythroblast cytoplasm to gray green in the cytoplasm of later normoblasts which reflect increasing hemoglobinization of the cell green color maturation of granulocytic cells in the neutrophilic series from promyelocyte to band is reflected by the difference in size cytoplasmic volume nuclear configuration and the number and color of granules primary granules stain orange and red whereas secondary granules stain brown while this invention was conceived through optical microscope study and through individual laboratory research it is well known in the medical diagnostics arts that optical microscopes have been and are supplanted by many technical advances wherein laser techniques and computer type instrumentation for example have been used to supercede and advance identification differentiation and enumeration of the normally invisible by improved instrumentation thus the term microscopic as used herein is generic to the universe of the infinitely small in certain chronic disorders patients may be found generally to have reduced numbers of t lymphocytes more recently it has been found advantageous to monitor subset numbers.