Final answer:
The principle of hair design that describes the relationship between hairstyle and physical features is called proportion. It refers to the size relationship of various parts and how they relate to the whole. This proportion should be harmonious and consider cultural significance and personal features.
Step-by-step explanation:
The principle of hair design that describes the comparative relationship between the hairstyle and a client's physical features is commonly referred to as proportion. Proportion involves the size relationship of parts of a body or form to one another and of the parts to the whole. When creating a hairstyle, a stylist must consider how different elements of the style, such as volume, length, and texture, relate to the client's facial features, body shape, and overall appearance to achieve a balanced and harmonious look.
For instance, the Greeks had specific beauty standards that included the color of hair, believing that blonde hair was the most prized. Indeed, hair grooming is a culturally significant practice, symbolizing various aspects like religious beliefs, social status, and cultural identity. Therefore, a hair stylist must also take into account these cultural perspectives when designing a hairstyle, further illustrating the importance of proportion and the overall relationship between a hairstyle and the person's features.