Red Brown Brown Gold — 210 Ω

Read left to right, starting from the end where the bands are grouped. The gold band is the tolerance and always sits alone at the far end.

What each band says

In a circuit

Surface-mount marking for the same value: 211.

If you misread one band

Brown and red, or orange and red, are easy to confuse under a desk lamp. These are the codes one band away from this one.

• Brown Brown Brown110 Ω
• Red Black Brown200 Ω
• Red Brown Black21 Ω
• Red Brown Red2.1 kΩ
• Red Brown Orange21 kΩ
• Red Brown Gold2.1 Ω
• Red Red Brown220 Ω
• Red Orange Brown230 Ω