If you are a student or former student of art, design, photography, interior design, decoration, or any creative practice, you've probably heard of the color wheel, also known colloquially as the color circle.
The color wheel is much more than a simple tool for mixing colors. It is a visual representation of colors organized on a circle based on the decomposition of light relative to the solar spectrum, showing chromatic relationships in a clear and understandable way. This model is essential for artists, designers, and scientists alike, as it helps them understand how colors combine, contrast, and complement each other.

The Runge Sphere by the painter Philipp Otto Runge was the first three-dimensional representation of the color wheel.
It is a visual representation of the relationships between colors and a guide to understanding how they interact with each other. Through its study, we can achieve more balanced, harmonious, and visually appealing compositions, both in the arts and in design. Its application is broad and fundamental in diverse areas, from painting to fashion and decoration, offering an essential framework for creating impactful visual experiences.
The color wheel or color wheel includes six colors (purple, red, yellow, green, light blue, and blue), and with it we can explore the interactions between primary, secondary, and tertiary colors, as well as concepts like harmony and contrast. The grouping of these colors creates "families" called primary, secondary, and tertiary colors.

The primary colors
The color wheel is built from the three primary colors: red, blue, and yellow. These colors are fundamental because they cannot be obtained by mixing other colors. They are the basis for creating all other colors in the visible spectrum.
Secondary colors
When we combine two primary colors in equal proportions, we obtain the secondary colors (green, . These colors complete the color spectrum on the color wheel, creating a smooth transition between the primary colors.
Tertiary colors
In addition to primary and secondary colors, there is a category of intermediate or tertiary colors. These are obtained by mixing a primary color with a secondary color, increasing the color variability.
Tertiary colors expand the possibilities for combining and creating more nuanced tones, allowing for greater variety in design and painting.

Harmony and contrast on the color wheel
The color wheel is not only useful for understanding how colors mix, but also for analyzing the relationships between colors and creating harmonious or contrasting compositions.
1. Color harmony: Refers to the selection of colors that, when combined, are pleasing to the eye. There are several forms of color harmony, such as:
Complementary colors: These are colors that are opposite each other on the color wheel. Examples include red and green, or blue and orange. Complementary colors create a strong and vibrant contrast, making them ideal for highlighting elements in a design.
Analogous colors: These are colors that are close together on the color wheel. For example, blue, blue-green, and green. Analogous colors tend to be soft and harmonious, resulting in relaxing and balanced compositions.
Chromatic triad: Refers to three colors equidistant on the color wheel, such as red, blue, and yellow. This scheme provides balanced contrast, but not as strong as complementary colors.

2. Chromatic contrast: Contrast refers to the difference between colors. The greater the difference, the greater the contrast. This can be achieved by using complementary colors, but also by mixing saturated colors with more neutral or desaturated colors. Chromatic contrast not only has a visual impact but can also evoke specific emotions and meanings depending on the context.

Using the color wheel in practice
The color wheel is a key tool in several disciplines. In painting, artists use it to mix colors effectively and create desired visual effects. In graphic design and fashion, designers use it to select color combinations that are aesthetically pleasing and convey the right message.
In the field of decoration, the color wheel is essential for creating harmonious and balanced spaces. Warm colors (reds, oranges, and yellows) are ideal for spaces where you want to create a cozy or stimulating atmosphere, while cool colors (blues and greens) are perfect for calm and relaxing environments.
