Sable Brown: "Sable brown isn't an overly warm or overly cool colour," said Rachel Bodt, a colourist at Mynd NYC. "It has almost like a fur colour quality to it that it makes [Kim's] natural colour appear warmer and shinier."
According to Bodt, a great way to achieve this shade is with hair painting, making sure not to lift the hair too light so that you stay in the brunette family. "It's all about adding variations of tones, which melts into the dark base."