White Rainbow
When we think of rainbows, we think of a multicolored circular arc. However, in the case of a white rainbow, the phenomenon appears as a bow in fog rather than rain, hence why it is also referred to as a ‘fog bow’.
Condensation doesn’t reflect much light so as a result the colors given off are weak, creating a ghostly rainbow. The only colors you can really see are a red outer edge and bluish inner edge.