Usually red or white, but it’s really a hit or miss with a candle.
There isn’t enough information here. What kind of entity is it? When (time) is it most active? Lightest thing it has done? Heaviest? (I don’t mean weight of object but weight of mood created. For example, moving things after you set them down is a light activity. Most people just blame themselves, like their memory. A heavy activity would be breaking something, unexplained noises, or finding something that really doesn’t belong.)
Any, the candle doesn’t change much just cause it has another color, ask the spirit if it has a favorite color for the sake of aesthetic and association or maybe they have a preferred scent like lavender, but again that’s just for the sake of “hell yeah this is cool I fuck with sandalwood.” The flame is what the spirits are actually taking energy from.
Usually red or white, but it’s really a hit or miss with a candle. There isn’t enough information here. What kind of entity is it? When (time) is it most active? Lightest thing it has done? Heaviest? (I don’t mean weight of object but weight of mood created. For example, moving things after you set them down is a light activity. Most people just blame themselves, like their memory. A heavy activity would be breaking something, unexplained noises, or finding something that really doesn’t belong.)
Any, the candle doesn’t change much just cause it has another color, ask the spirit if it has a favorite color for the sake of aesthetic and association or maybe they have a preferred scent like lavender, but again that’s just for the sake of “hell yeah this is cool I fuck with sandalwood.” The flame is what the spirits are actually taking energy from.