* Earthy Brown: This is the most common interpretation. Think of the color of dried heath plants or the soil in a heathland. It would be a medium to dark brown with possible reddish or golden undertones.
* Greenish-Brown: Depending on the type of heath plant and its condition, "heath hair" could be a muted greenish-brown, like the color of some heath foliage.
* Reddish-Brown: Some heath plants have reddish stems or flowers, so a reddish-brown hair color is another possibility.
* Multi-Tonal: Just as a heath landscape has different shades and textures, "heath hair" could refer to hair with a mix of brown, reddish, and blonde tones, creating a natural, sun-kissed look.