Resistor Color Code Chart
Resistors are devices that limit current flow and provide a voltage drop in electrical circuits.
Because carbon resistors are physically small, they are color-coded to identify their resistance
value in ohms. The use of color bands on the body of a resistor is the most common system for
indicating the value of a resistor. Color-coding is standardized by the Electronic Industries
Use the Resistor Color Code Chart (below) to understand how to use the color code system.
When looking at the chart, note the illustration of three round resistors with numerous color code
bands. The first resistor in the chart (with 4 bands) tells you the minimum information you can
learn from a resistor. The next (a 5-band code) provides a little more information about the
resistor. The third resistor (a 6-band) provides even more information. Each color band is
associated with a numerical value.