The hex color #455D9F is a dark color. The web-safe version is Hex
#336699. A complementary color is
#BAA260. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#7890D2, and Hex
#122A6C is the 20% darker color. If the color is saturated by 10%, you get
#415CA4. If the color is desaturated by 10%, the color
#495E9A is obtained.