Cool undertones refer to the subtle hues in the skin that lean towards blue, pink, or purple shades. People with cool undertones often have fair to medium skin that may burn easily in the sun. Their veins typically appear blue, and they tend to look better in silver jewelry compared to gold. Identifying cool undertones can help in choosing the right makeup and clothing colors. Shades like blue, green, and purple often complement cool undertones, while warm colors like orange and yellow may not be as flattering. Understanding undertones can enhance overall appearance and style.