The hex color #ECEFAF is a light color. The web-safe version is Hex
#FFFF99. A complementary color is
#131050. The grayscale version is
#D9D9D9. A 20% lighter version of the original color is
#FFFFE2, and Hex
#B9BC7C is the 20% darker color. If the color is saturated by 10%, you get
#EEF1AB. If the color is desaturated by 10%, the color
#EAEDB3 is obtained.