The hex color #7de9eb is a light color. The web-safe version is Hex
#66FFFF. A complementary color is
#821614. The grayscale version is
#C6C6C6. A 20% lighter version of the original color is
#B0FFFF, and Hex
#4AB6B8 is the 20% darker color. If the color is saturated by 10%, you get
#76EDEF. If the color is desaturated by 10%, the color
#84E5E7 is obtained.