What is the effect of having darker hair at the scalp and lighter hair on the ends referred to as?

The effect of having darker hair at the scalp and lighter hair on the ends is referred to as "minking." This technique involves creating a gradient or transition from a deeper, more intense color at the roots to lighter shades towards the ends of the hair. Minking is often used to achieve a natural, sun-kissed look, mimicking how hair naturally lightens in the sun. This effect can add dimension and texture to the hair, making it visually appealing and enhancing the overall hairstyle.

The other terms listed do not describe this particular coloring technique. "Fur light" is not a recognized term in hair coloring, while "color on color" generally refers to applying different colors or tones to the hair without specifying any gradation. "Gray reduction" focuses on minimizing or covering gray hair, rather than creating a highlighted effect. Therefore, minking specifically captures the essence of the described hair coloring technique.