The hex color #4a5f9c is a dark color. The web-safe version is Hex
#336699. A complementary color is
#B5A063. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#7D92CF, and Hex
#172C69 is the 20% darker color. If the color is saturated by 10%, you get
#475EA1. If the color is desaturated by 10%, the color
#4D6097 is obtained.