The hex color #3b83fa is a dark color. The web-safe version is Hex
#3399FF. A complementary color is
#C47C05. The grayscale version is
#939393. A 20% lighter version of the original color is
#6EB6FF, and Hex
#0850C7 is the 20% darker color. If the color is saturated by 10%, you get
#3281FF. If the color is desaturated by 10%, the color
#4485F0 is obtained.