The hex color #3b09df is a dark color. The web-safe version is Hex
#3300CC. A complementary color is
#C4F620. The grayscale version is
#616161. A 20% lighter version of the original color is
#6E3CFF, and Hex
#0800AC is the 20% darker color. If the color is saturated by 10%, you get
#3700EC. If the color is desaturated by 10%, the color
#3F12D2 is obtained.