lowlight

/L OW1 L AY0 T/
noun
  1. 1

    A particularly bad or mediocre aspect.

  2. 2

    In hairstyling, a highlight in a darker colour rather than a lighter one.

verb
  1. 1

    To dye (part of the hair) a darker colour than the rest.

Source: https://en.wiktionary.org/wiki/lowlight