The hex color #6de9fe is a light color. The web-safe version is Hex
#66FFFF. A complementary color is
#921601. The grayscale version is
#C7C7C7. A 20% lighter version of the original color is
#A0FFFF, and Hex
#3AB6CB is the 20% darker color. If the color is saturated by 10%, you get
#64ECFF. If the color is desaturated by 10%, the color
#76E6F8 is obtained.