The hex color #3be9ed is a light color. The web-safe version is Hex
#33FFFF. A complementary color is
#C41612. The grayscale version is
#B0B0B0. A 20% lighter version of the original color is
#6EFFFF, and Hex
#08B6BA is the 20% darker color. If the color is saturated by 10%, you get
#2FEFF3. If the color is desaturated by 10%, the color
#47E3E7 is obtained.