What is the CMYK color value of the standard color on the tourist attractions sign?

According to the national standard GB5768 "Road traffic signs and markings":

In order to attract and guide people from expressway or other roads to neighboring tourist areas, a series of tourist signs should be set at the crossroads leading to tourist attractions, so that tourists can easily identify the direction and distance to the tourist areas and understand the types of tourist projects.

The signs of tourist areas are divided into two categories: a) guiding signs and b) tourist signs.

The colors of tourist area signs are brown and white. The size of the guide logo should be determined according to the speed, and then the layout size should be determined according to the number of words and patterns. The size of tourist signs is generally 60cm×60cm, which can also be enlarged or reduced as needed.

The CMYK color value of brown is

：

c=5

m=20

y= 100

k= 10

The CMYK color value of white is: C = 0；; M=0，Y=0，K=0