The hex color #3edffc is a light color. The web-safe version is Hex
#33CCFF. A complementary color is
#C12003. The grayscale version is
#B3B3B3. A 20% lighter version of the original color is
#71FFFF, and Hex
#0BACC9 is the 20% darker color. If the color is saturated by 10%, you get
#32E3FF. If the color is desaturated by 10%, the color
#4ADBF5 is obtained.