Cool Brassy Hair Color References. Whether your natural color is blonde or brunette, your hair is still susceptible to manifesting these unwanted warm hair tones. Web the first step to fixing brassy hair in the salon is checking the wella color wheel;

Web basically, brassy tones start showing up in your hair when your toner starts to wear off. Web what is brassy hair? Brass is a word we use for warm tones like red and orange, that are typically most visible when you lighten your hair.