The hex color #387cec is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#C78313. The grayscale version is
#8B8B8B. A 20% lighter version of the original color is
#6BAFFF, and Hex
#0549B9 is the 20% darker color. If the color is saturated by 10%, you get
#307BF6. If the color is desaturated by 10%, the color
#407DE2 is obtained.