The hex color #1efecd is a light color. The web-safe version is Hex
#33FFCC. A complementary color is
#E10132. The grayscale version is
#A3A3A3. A 20% lighter version of the original color is
#51FFFF, and Hex
#00CB9A is the 20% darker color. If the color is saturated by 10%, you get
#11FFD1. If the color is desaturated by 10%, the color
#2BF5C9 is obtained.