Will-o'-the-wisp
In folklore, a will-o'-the-wisp, or will-o'-wisp, is an atmospheric ghost light seen by travellers at night, especially over bogs, swamps, or marshes.
Read on WikipediaMarsh mist that lures lost travellers, frozen into a pale, steady glow.
Will o’ the Wisp is a light grey.
It can be described as light, pale and neutral.
Set in black, because black reads best on it.
In folklore, a will-o'-the-wisp, or will-o'-wisp, is an atmospheric ghost light seen by travellers at night, especially over bogs, swamps, or marshes.
Read on WikipediaNoun