A white lie is lie that is harmless. Something that won't affect the outcome of something
White lies are little lies, white lies are those fibs that are thought to be less harmful than the truth.
It is called the white house because it is painted white.
it's a white lie so it's still a lie, but not that big.
This is just a guess, but i think it is because the color white is a mixture of frequncies of light ranging from red to violet, so if you look at the wave pattern, it will look like a complete mess....