The hex color #4ecb9c is a light color. The web-safe version is Hex
#66CC99. A complementary color is
#B13463. The grayscale version is
#929292. A 20% lighter version of the original color is
#81FECF, and Hex
#1B9869 is the 20% darker color. If the color is saturated by 10%, you get
#47D19D. If the color is desaturated by 10%, the color
#55C59B is obtained.