The hex color #6de9bd is a light color. The web-safe version is Hex
#66FFCC. A complementary color is
#921642. The grayscale version is
#B1B1B1. A 20% lighter version of the original color is
#A0FFF0, and Hex
#3AB68A is the 20% darker color. If the color is saturated by 10%, you get
#66EFBE. If the color is desaturated by 10%, the color
#74E3BC is obtained.