Overview of the fiber-optic color coding of connectors, adapters and the corresponding jacket colors. Representation of the fiber coding according to IEC and DIN standard.

Color coding for connectors and adapters

TypColor
Singlemode (0°=PC)blue
Singlemode (8°=APC)green
Multimode OM1 + OM2black / beige
Multimode OM3turquoise
Multimode OM4erikaviolett

Fiber coding
IEC 60794-2

FiberColor
1blue
2yellow
3red
4white
5green
6violett
7orange
8grey
9turquoise
10black
11brown
12pink

Fiber coding 
IEC 60304 and DIN EN 60794-1-1 Bbl1

FiberColor
1red
2green
3blue
4yellow
5white
6grey
7brown
8violett
9turquoise
10black
11orange
12pink

Faserkodierung nach
Swisscom

FaserFarbkodierung
1red
2green
3yellow
4blue
5white
6violett
7orange
8black
9grey
10brown
11pink
12turquoise

Faserkodierung nach
TIA/EIA-598 EN 50174-1

FaserFarbkodierung
1blue
2orange
3green
4brown
5grey
6white
7red
8black
9yellow
10violett
11pink
12turquoise

Color coding up to 12 fibers. In the case of more than 12 fibers in the bundle, the fibers 13-24 are provided with an additional ring marking.

Coat Color Coding

TypColor
FO-External Cableblack with orange stripe
FO-Universalgreen
FO-Internal CableSinglemode G.652 + G.657 yellow (green)
Multimode G50 (OM2) orange
Multimode G50 (OM3) turquoise
Multimode G50 (OM4) erikaviolett
Multimode G62,5 (OM1) grey

Bundle Color Coding

TypColorFiber Typ
Forwarderredall
Directionalgreenall
Follow upwhiteE9 / 125
lightgreenG50 / 125
blueG62 / 125
Blind elementsblack

The counting of the bundles takes place in hybrid F0 cables from the small to the larger diameter.