Root hair color, when referring to hair color, is the color of the hair closest to the scalp. It's typically darker than the mid-lengths and ends of the hair, creating a subtle, natural gradient effect. Root hair color can range from a few shades darker to a completely contrasting color, adding depth and dimension to an overall hair color look.
Root hair color plays a crucial role in hair coloring techniques and trends. Stylists often use root smudging or shadow rooting to blend the roots with the rest of the hair, creating a seamless transition. Highlighting or balayage can be applied to the roots to brighten or add contrast. Historically, root touch-ups have been a common hair maintenance practice to conceal regrowth and maintain a consistent hair color.