The hex color #4ececd is a light color. The web-safe version is Hex
#66CCCC. A complementary color is
#B13132. The grayscale version is
#A3A3A3. A 20% lighter version of the original color is
#81FFFF, and Hex
#1B9B9A is the 20% darker color. If the color is saturated by 10%, you get
#46D2D1. If the color is desaturated by 10%, the color
#57CAC9 is obtained.