The hex color #387ffc is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#C78003. The grayscale version is
#919191. A 20% lighter version of the original color is
#6BB2FF, and Hex
#054CC9 is the 20% darker color. If the color is saturated by 10%, you get
#2F7DFF. If the color is desaturated by 10%, the color
#4181F1 is obtained.