You must be talking of a specific installation. Wire colours can be any colour that they are specified to be.
try looking for a wiring diagram
You have a 3 way switch. Your black wire is the hot wire. Your green wire is the ground wire. Your red and white wires go to the light and other switch. You should have gotten a wiring diagram with your switch.
eletrical wire has 3 specif colour coding. As live wire ,neutral wire,earth wire. 1.live - red 2.neutral-black 3.earth - green. These are the specific color coding of eletrical wire.
A hot, glowing wire emits all wavelengths (or colors) of light. This is sometimes called "blackbody radiation." Since all colors are present, you will get a continuous spectrum.
For the 1993 Toyota Tercel, the O2 sensor has three different wire colors. These colors are: black, blue, and white.
The red wire is the positive wire. The black wire is the ground wire. The green wire is the speaker wire. The white wire is the auxiliary wire.
the black wire is the hot wire
L1 is black or the hot wire and L2 is white or the netural wire
You can find the 2005 Ford Ranger radio CD player wire color codes in most service manuals. The wire colors are associated as follows; the positive wire is red, the black wire is the ground, the green and yellow wires are speaker wires, and the white wire is the auxiliary wire.
The ground wire is a black. The positive wire is red. The speaker wires are yellow and green. The auxiliary wire is white.
The wire conductor colors in a non metallic sheathed cable are black, red, white, and a bare copper.
IAT wire colors
The United Colors of Amani - 2013 The Wire 1-4 was released on: USA: 8 October 2013
The 1996 Toyota Camry ignition harness has three wires. The red wire is the hot wire. The black wire is the ground wire. The white wire is the auxiliary wire.
The black and red colors carry power. The white indicates neutrally while the green wire is the wire to the earth.
For the 1998 BMW 318ti, the radio battery constant 12-volt + wire colors are red and white. The 12-volt radio accessory wire colors are purple and white. The ground wire is brown and the antenna trigger wire is white.