2. In terms of hue, chestnut is warmer and yellower, and dark brown is heavier.

3. Emotionally, chestnut is warm and elegant, and dark brown is calm and restrained.

4. Different applicable groups: light brown and dark brown should be determined according to skin color. Generally speaking, darker skin is more suitable for dark brown.

Extended data:

Precautions for dyeing hair:

1. In order to prolong the hair color maintenance time after semi-permanent dyeing, we can try a conditioner with enhanced color function in the process of hair care to achieve similar complementary color effect. When washing your hair, you can also drop a few drops of lemon juice in the water. Slightly acidic lemon juice can help acid-base balance and achieve color protection.

2. Color is the impression produced by light waves emitted, reflected or transmitted by an object through vision. The purity and brightness of a color are called chromaticity. The cold and warm feeling that reflects the color is called light feeling. Mastering the basic theory of color is of great significance for improving bleaching and dyeing technology and creating beautiful hairstyles.

3. You can dye your hair 7 days after perm, and you can get a perm 7 days after perm.

4. Golden yellow and purple are contrasting colors, and they should not be stained with each other.

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