What do the colors of Electrical Tape mean? A Quick Guide
To help you stay organized and informed, we’ve put together a guide explaining what each color represents!
Published on
June 27th, 2025
If you peek inside any electrician’s toolbox, you’ll likely find the essentials: power tools, a multimeter, voltage testers, and several brightly colored rolls of tape.
These tapes are electrical tapes, designed for labeling, phase insulation, and improving organization in electrical applications.
At Bron Tapes, we offer BT-48, a high-quality PVC Electrical Insulating Tape designed to simplify wire identification and color coding. Available in 10 distinct colors, BT-48 helps electricians quickly and accurately mark cables based on their function or voltage.
While it might seem like the colors are just for customization and fun, each one has a specific meaning, and those meanings can vary by country. Using red electrical tape communicates something very different than green tape. That's why proper color coding is critical for safety, clarity, and compliance.
To help you stay organized and informed, we’ve put together a guide explaining what each color represents!
What do the Colors of Electrical Tape Signify?
- Black
- US: Insulation, Low Voltage, Phase A (this is the most commonly used for marking/labeling)
- UK: Insulation, Low Voltage, Neutral
- International: Low voltage, Phase B
- Red
- US: Low voltage, Phase B
- UK: Low voltage, phase A
- International: Sheath, 3-Phase 415V
- Blue
- US: Low Voltage, Phase C
- UK: Low Voltage, Phase C
- International: Low Voltage, Neutral Sheath, 230 V
- Brown
- US: High Voltage, Phase A
- International: Low Voltage, Phase A
- Orange
- US: High Voltage, Phase B
- International: Sheath, Garden Tools
- Yellow
- US: High Voltage, Phase C
- UK: Low Voltage, Phase B
- International: Sheath, 110V Wiring
- Purple
- US: High Voltage, Phase B
- Green
- US: Earth Ground
- UK: Earth
- International: Earth
- White
- US: Low Voltage, Neutral
- Gray
- US: Low Voltage, Neutral
- International: Low Voltage, Neutral
Always consult the instructions or product manual before working with electrical wiring. Need more help identifying which color you need for BT-48? Contact an Application Specialist today!