In design, which of the following is NOT considered a cool color?

In color theory, cool colors are typically associated with water, sky, and foliage, creating a sense of calmness and tranquility. These colors primarily include shades of blue, green, and purple. Red, on the other hand, is categorized as a warm color. It conveys energy, warmth, and intensity, often associated with heat or passion.

Understanding the color wheel is essential in this context, as it categorizes colors into warm and cool segments. Warm colors, such as red, orange, and yellow, evoke feelings of warmth and vibrancy, while cool colors do the opposite, invoking feelings of coolness and relaxation. Therefore, identifying red as a warm color highlights its distinct qualities, effectively confirming that it is not part of the cool color spectrum.