Which of the following colors is not warm?

The color blue is classified as a cool color, while red, orange, and yellow are warm colors. Warm colors evoke feelings of warmth and energy, often associated with sunlight and heat. These colors are typically used to create a vibrant and inviting atmosphere.

In contrast, blue is often associated with calmness, tranquility, and coolness, resembling elements like water and the sky. This classification is important in hairstyling and color theory, as understanding the temperature of colors helps professionals create desired looks and moods for their clients. By recognizing blue as a cool color, hairstylists can effectively use color combinations and contrasts to enhance their work.