It consists of four color stripes, 3 three next to each other on the left, and one to the right.
Meaning of those stripes:
- first to the left: tens
- second to the left: ones
- third to the left: multiplier
- fourth (the one to the right): tolerance
Each color has the following meaning (image from this site that also has a handy calculator to get the resistance based on colors, if you don't feel like doing that manually ;)):
Note that this chart is for five band resistors. The logic is the same, though.
Examples
| 1st color | 2nd color | 3rd color | 4th color (right) | Meaning |
|---|---|---|---|---|
| Red | Red | Black | Gold | 22 Ohm +- 5% |