prefer -- the one your job uses, the one you believe is industry standard, the
one you think is the One True Standard even though no-one uses it, and so on.
All I ask is that you be internally consistent.
What colour should a normal ethernet cable be?
Blue
18(51.4%)
Grey
7(20.0%)
Red
0(0.0%)
Purple
1(2.9%)
Yellow
1(2.9%)
Green
0(0.0%)
Black
2(5.7%)
Some other (consistent) colorr
0(0.0%)
No standard colour
6(17.1%)
What colour should a crossover cable be?
Blue
2(6.2%)
Grey
2(6.2%)
Red
8(25.0%)
Purple
2(6.2%)
Yellow
7(21.9%)
Green
2(6.2%)
Black
1(3.1%)
Varies
1(3.1%)
Some other (consistent) colour
3(9.4%)
No standard colour
4(12.5%)
Is there a reason that crossover cables should be that colour?
Do you have other standard cat5 cable colours (eg. serial line, temporary patch, trunking, power-over-ethernet)?