Wire colors

[b9423w]

Is there a general rule on the color of wires.I am trying to connect the front panel to the motherboard.I have blue,red,white and black wires and I need to know the polarity of them,if possible.Thank you.

 

[rolli59]

Usually the negative is either black or white, so if you have a colored matched with those the colored would be +

 

[b9423w]

Usually the negative is either black or white, so if you have a colored matched with those the colored would be +

Thanks so much,you were a big help,I really appreciate it.