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BS 5308 Colour Codes
                                                                                           
BS 5308 Part 1 Colour Code Table 12                                                                     

BS 5308 Colour Codes

BS 5308 Part 1 Colour Code Table 1

Unscreened & Collective Screened

Pair no.    A - wire    B - wire
1    Black    Blue
2    Black    Green
3    Blue            Green
4    Black    Brown
5    Blue     Brown
6    Green    Brown
7    Black    White
8    Blue            White
9    Green    White
10    Brown    White
11    Black    Red
12    Blue         Red
13    Green    Red
14    Brown    Red
15    White    Red
16    Black    Orange
17    Blue            Orange
18    Green    Orange
19    Brown    Orange
20    White    Orange
21    Red            Orange
22    Black    Yellow
23    Blue            Yellow
24    Green    Yellow
25    Brown    Yellow
26    White    Yellow
27    Red            Yellow
28    Orange    Yellow
29    Black    Grey
30    Blue            Grey
31    Green    Grey
32    Brown    Grey
33    White    Grey
34    Red            Grey
35    Orange    Grey
36    Yellow    Grey
37    Black    Grey
38    Blue            Grey
39    Green    Violet
40    Brown    Violet
41    White    Violet
42    Red            Violet
43    Orange    Violet
44    Yellow    Violet
45    Grey    Violet
46    Black    Turquoise
47    Blue      Turquoise
48    Green    Turquoise
49    Brown    Turquoise
50    White    Turquoise

sSingle Quad (2 pair): Black, Blue, Green, Brown
Single Triple: Blue, Black, Green
Individually screened pairs can also be identified by a polyester tape over black and purple pairs.

Source from CSE Cables