The hex color #fdfef2 is a light color. The web-safe version is Hex
#FFFFFF. A complementary color is
#02010D. The grayscale version is
#FAFAFA. A 20% lighter version of the original color is
#FFFFFF, and Hex
#CACBBF is the 20% darker color. If the color is saturated by 10%, you get
#FDFEF1. If the color is desaturated by 10%, the color
#FDFEF3 is obtained.