Fiber Optic Patch Panel Color Chart

Fiber optic patch panels follow a standardized 12-color sequence for individual fibers, with outer jacket and connector colors indicating fiber type and polish.

Standard 12-Color Sequence for Fibers

For most patch panels and multi-fiber cables, the inner fiber strands are color-coded in a repeating 12-color sequence according to TIA-598-C:

1. Blue
2. Orange
3. Green
4. Brown
5. Slate (Gray)
6. White
7. Red
8. Black
9. Yellow
10. Violet
11. Rose (Pink)
12. Aqua For cables with more than 12 fibers, this sequence repeats in groups, often using a “tube and fiber” system where each buffer tube is assigned a color, and fibers inside follow the same 12-color order ( ).

Multi-Mode and Single-Mode Jacket Colors

The outer jacket color helps identify the fiber type:

• Single-mode (OS1/OS2): Yellow
• Multimode OM1: Orange
• Multimode OM2: Orange
• Multimode OM3/OM4: Aqua (OM3) or Violet (OM4)
• Multimode OM5: Lime Green Connector boots also indicate fiber type and polish:
• Single-mode UPC: Blue
• Single-mode APC: Green
• Multimode OM1/OM2: Beige or Black
• Multimode OM3: Aqua
• Multimode OM4: Violet
• Multimode OM5: Lime Green ( ).

High-Fiber-Count Cables

For cables with 24, 48, 96, or more fibers, the 12-color sequence is applied to each fiber within a tube, and tubes themselves may have distinct colors to differentiate them. For example, fiber #34 in a 48-fiber cable could be the 10th fiber (Violet) in the 3rd tube (Green) ( ).

Practical Tips

• Always verify printed labels on the cable jacket, as some manufacturers may use custom colors.
• Never mix connector types (e.g., APC into UPC) to avoid signal loss or damage.
• Use color coding in combination with labeling for accurate identification in complex installations ( ). By following these standards, technicians can quickly identify fibers, reduce errors, and maintain continuity across patch panels, splice enclosures, and high-density cabling systems.