Wire and Cable Color Codes · Free Tool
Fiber Optic Color Code (TIA-598) and Jacket Colours
Find the colour of any fibre number in a TIA-598 cable, including fibres beyond 12 in multiple tubes, and identify cable types from jacket colour.
Fibres 1 to 12Buffer tubesFibre number lookupJacket colours
Buffer tubeTube 2: Orange
Fibre colour in tubeSlate
Position in tube5
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TIA-598 Colour Sequence
| No | Colour | No | Colour |
|---|---|---|---|
| 1 | Blue | 7 | Red |
| 2 | Orange | 8 | Black |
| 3 | Green | 9 | Yellow |
| 4 | Brown | 10 | Violet |
| 5 | Slate | 11 | Rose |
| 6 | White | 12 | Aqua |
Jacket colours (common practice)
| Fibre type | Jacket |
|---|---|
| Single mode OS1, OS2 | Yellow |
| Multimode OM1, OM2 | Orange |
| Multimode OM3, OM4 | Aqua (OM4 sometimes Violet) |
| Multimode OM5 | Lime |
Tip: fibres 13 to 24 repeat the same 12 colours with a stripe or dash in many cables; follow the cable maker data sheet.
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Frequently Asked Questions
What is fibre 1?
Blue, the first colour of the TIA-598 sequence.
What jacket colour is single mode?
Usually yellow.
Is OM4 aqua or violet?
Both are used; aqua is the standard colour, violet is a common alternative for OM4.
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