Tuttle advises to ask your colorist for "hand-painted caramel highlights paired with a warm or dark chocolate base." And like balayage, it grows out seamlessly, since the roots are not necessarily dyed.
The talented colorist Evelyn Bilauca shares this gorgeous picture of a brunette hair color she did using the balayage method. Balayage means hand painting on the color and not using foils. I love the blending, but would want lighter color.