A good balayage hair color will blend the two colors seamlessly. Ashy blonde is a common choice for this look, as is a white or platinum blonde. Other shades of brown, such as caramel, are also suitable for this style. The most important thing is that the colorist must have a strong artistic eye and be skilled in blending the two colors together. In order to get the right result, a good balayage hair color should look natural and flattering.