The hex color #55fecc is a light color. The web-safe version is Hex
#66FFCC. A complementary color is
#AA0133. The grayscale version is
#B5B5B5. A 20% lighter version of the original color is
#88FFFF, and Hex
#22CB99 is the 20% darker color. If the color is saturated by 10%, you get
#4BFFCE. If the color is desaturated by 10%, the color
#5FF7CA is obtained.