The hex color #4fb8a9 is a light color. The web-safe version is Hex
#66CC99. A complementary color is
#B04756. The grayscale version is
#909090. A 20% lighter version of the original color is
#82EBDC, and Hex
#1C8576 is the 20% darker color. If the color is saturated by 10%, you get
#49BCAC. If the color is desaturated by 10%, the color
#56B4A7 is obtained.