The table can also be used to specify the color of the bands when the values are known. A color is assigned to each tolerance. How To Remember Electrical Resistor Color Codes 5 Steps Basic Resistors For Beginners And Novices Color Code For Resistors Engineering Com With that knowledge realize that on a four band resistor the third color will always be blue 106 or less and on a five band resistor the fourth color will always be green 105 or. How to read resistor color bands . Resistor color code chart. The chart below shows how to determine the resistance and tolerance for resistors. The use of the code can be understood by referring to the resistor shown in figure 1. 4 band resistor color code calculator and chart digikey electronics. The standard resistor color code table. To read an axial lead resistor hold the resistor so the gold or silver...