The hex color #3b83dc is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#C47C23. The grayscale version is
#898989. A 20% lighter version of the original color is
#6EB6FF, and Hex
#0850A9 is the 20% darker color. If the color is saturated by 10%, you get
#3382E4. If the color is desaturated by 10%, the color
#4384D4 is obtained.