How do you change the color of a lighter flame?

Typically, the color of a lighter flame is determined by the type of fuel being burned. For example, butane lighters typically produce a blue flame, while Zippo lighters with lighter fluid produce a yellow or orange flame.
To change the color of a lighter flame, you would need to modify the fuel being burned. You can use a chemical called "boron" to create the flame. or you can use lithium chloride, which can produce a red flame when burned.