The hex color #3C9FCC is a light color. The web-safe version is Hex
#3399CC. A complementary color is
#C36033. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#6FD2FF, and Hex
#096C99 is the 20% darker color. If the color is saturated by 10%, you get
#34A1D2. If the color is desaturated by 10%, the color
#449DC6 is obtained.