The hex color #EFB8C0 is a light color. The web-safe version is Hex
#FFCCCC. A complementary color is
#10473F. The grayscale version is
#CDCDCD. A 20% lighter version of the original color is
#FFEBF3, and Hex
#BC858D is the 20% darker color. If the color is saturated by 10%, you get
#F2B6BF. If the color is desaturated by 10%, the color
#ECBAC1 is obtained.