The hex color #40658c is a dark color. The web-safe version is Hex
#336699. A complementary color is
#BF9A73. The grayscale version is
#666666. A 20% lighter version of the original color is
#7398BF, and Hex
#0D3259 is the 20% darker color. If the color is saturated by 10%, you get
#3C6590. If the color is desaturated by 10%, the color
#446588 is obtained.