What is true about applying vivid colors to pre-lightened hair?

Applying vivid colors to pre-lightened hair is most effective because the intensity of these colors increases with the degree of lightening. When hair is pre-lightened, it removes the natural pigments and creates a lighter base, which allows vivid colors such as purples, pinks, and blues to show up more vibrantly and true to their intended shade. The lighter the hair, the more vivid and saturated the color can appear, resulting in a brighter and more striking look.

In contrast, if the hair was not pre-lightened, the natural pigment could mute the vivid colors, preventing them from reaching their full potential. Therefore, achieving a strong, impactful result with vivid shades necessitates a foundation of well-lightened hair.