The hex color #7de9cb is a light color. The web-safe version is Hex
#66FFCC. A complementary color is
#821634. The grayscale version is
#BBBBBB. A 20% lighter version of the original color is
#B0FFFE, and Hex
#4AB698 is the 20% darker color. If the color is saturated by 10%, you get
#77EECD. If the color is desaturated by 10%, the color
#83E4C9 is obtained.