The hex color #3d6af1 is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#C2950E. The grayscale version is
#888888. A 20% lighter version of the original color is
#709DFF, and Hex
#0A37BE is the 20% darker color. If the color is saturated by 10%, you get
#3667FC. If the color is desaturated by 10%, the color
#456DE7 is obtained.