Wyoming State Board Cosmetology Practice Exam

Cool tones refer to colors that have a blue undertone or are on the blue side of the color wheel. Option A is incorrect because it includes warm tones such as red, orange, and yellow. Option C is incorrect because it includes neutral tones such as brown, black, and grey. Option D is incorrect because it only includes two of the three cool tones (blue and red) and also includes a warm tone (yellow).