The hex color #3b83b8 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#C47C47. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#6EB6EB, and Hex
#085085 is the 20% darker color. If the color is saturated by 10%, you get
#3484BE. If the color is desaturated by 10%, the color
#4282B2 is obtained.