The hex color #1efec7 is a light color. The web-safe version is Hex
#33FFCC. A complementary color is
#E10138. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#51FFFA, and Hex
#00CB94 is the 20% darker color. If the color is saturated by 10%, you get
#11FFCB. If the color is desaturated by 10%, the color
#2BF5C3 is obtained.