Final answer:
The color jacket for 14 AWG wire is often white, as this is a common color for NM cable sheathing intended for use with 15-amp circuits in residential wiring, although color doesn't indicate wire gauge and may vary according to local codes.
Step-by-step explanation:
The color jacket used for 14 AWG wire typically does not have a standard color because the color of the insulation jacket around an electrical wire doesn't usually indicate the wire's gauge. The color coding for the outer jacket of electrical cables is more commonly associated with its purpose or type of circuit in residential wiring. For instance, white sheathing often signifies NM cable (Non-Metallic sheathed cable) commonly used for 14 AWG wire size meant for indoor use with 15-amp circuits. It's important to remember that local or national electrical codes may influence wire color standards, and these standards can vary.