A colorimeter is an instrument used to measure the color of the surface of an object, which is widely used in printing, coatings, cosmetics and other fields. When using a colorimeter, we need to understand the meaning of its values in order to read the measurement results correctly. Below, we will take a closer look at the values of the colorimeter and what they mean.
1.L-value.
The L-value is the single most important value in a colorimeter and indicates how bright or dark an object is. The l value ranges from 0 to 100, where 0 is black and 100 is white. When the l value is higher, the surface of the object is brighter;When the l value is lower, the surface of the object is darker.
2.a-value.
The value a represents the relative value of the degree of redness and green of an object. When the A value is greater than 0, it means that the surface of the object is reddishWhen the A value is less than 0, it means that the surface of the object is greenish. The greater the absolute value of the a-value, the more pronounced the color of the surface of the object is reddish or green.
3.b-value.
The b value represents the relative value of the degree of yellow-blue of an object. When the b value is greater than 0, it means that the surface of the object is yellowWhen the b value is less than 0, it means that the surface of the object is blue. The greater the absolute value of the b value, the more pronounced the degree to which the surface color of the object tends to be yellow or blue.
4.C-value.
The c value represents the relative value of the saturation of the object. When the c value is positive, it means that the surface of the object is darkerWhen the C value is negative, it means that the surface of the object is pale in color. The greater the absolute value of the c value, the higher the saturation of the color of the object's surface.
100 Families Help Plan 5The h-value H-value represents the degree of the hue of the object. When the h value is 0, it means that the surface of the object is neutralA h value of 90 indicates that the surface of the object is reddishA h value of 180 indicates that the surface of the object is greenAn h value of 270 indicates that the surface of the object is a blue hue. According to the measurement results from different angles, the main color of the surface of the object can be determined. When using a colorimeter, we need to focus on different values depending on the specific needs. For example, in the field of printing, we may need to pay attention to the changes in L-value, A-value, B-value and C-value to judge the quality and color matching of printed matter;In the field of cosmetics, we may pay more attention to the changes in L, B, and C values to determine the coverage and skin tone adjustment effect of a product. In short, when using a colorimeter, we can understand the meaning of each value to better play its role and help us solve practical problems.