Saekdong refers to a stripe that features many colors, it began to be used for Hanbok since the Goryeo period (918-1392). Saekdong reminds one of the rainbow, which in turn evokes thoughts of children's dream. Saekdong paterns were commonly provided for children between the age of 1 to 7. The use of wide aray of colors found and in the children's saekdong was rooted in belief could drive the evil spirits away.
in the 21th century saekdong come to be regarded as the symbol of Korean color patterns.
The color pattern of Saekdong. pict source : dparkerart.com
pict source : bentinhyeu.info
source : wikipedia and 100 cultural symbols of Korea.