The hex color #306cec is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#CF9313. The grayscale version is
#838383. A 20% lighter version of the original color is
#639FFF, and Hex
#0039B9 is the 20% darker color. If the color is saturated by 10%, you get
#286AF7. If the color is desaturated by 10%, the color
#386EE1 is obtained.