The hex color #3d68fd is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#C29702. The grayscale version is
#8B8B8B. A 20% lighter version of the original color is
#709BFF, and Hex
#0A35CA is the 20% darker color. If the color is saturated by 10%, you get
#3564FF. If the color is desaturated by 10%, the color
#456CF2 is obtained.