There are two main factors that affect the color of the finished salve. They are: Carrier oil color - Dark green carrier oils will yield a darker salve, while lighter ones will yield light green or yellow. Coconut oil tends to yield light yellow or white. Heat setting - When the plantain oil is infused with no heat or very low heat it tends to yield a different color than medium heat. This also applies to the amount of heat that is used when blending the infused oil and wax.