N natural brown (primary color), NA cool brown, A blue brown, P pearl color, V blue purple, KN.
Light reddish brown, BN light brown VR reddish purple, R red, KR mahogany color, K reddish brown, KG reddish brown, G golden yellow, GB.
Golden brown, B natural brown wood color, RB coffee red, RK brilliant red.
Chroma is an index used to indicate how much melanin is contained in hair, and different shades indicate different shades of hair. Generally speaking, hair is divided into ten shades, which are represented by the numbers 1 to 10 respectively. The smaller the number, the higher the melanin content and the darker the color. Conversely, the larger the number, the less melanin and the lighter the color.
N refers to the natural primary color, which can be used as a benchmark for customers to judge the chromaticity grade of natural hair before dyeing, and can also be used as an ideal gray-white hair masking color system. When dyed alone, it will smell brown.
0 or 000 or 1000 or 2000 refers to → ammonia, which is a high-grade dye paste without pigment, and it is called fading paste or color paste or color paste or brightening agent.
1 or a or c refers to the gray system (the pigment is blue or green), which can mainly correct unwanted red, orange and orange, and can be dyed brown green, dark blue and navy blue after a little bleaching.