The hex color #48509d is a dark color. The web-safe version is Hex
#336699. A complementary color is
#B7AF62. The grayscale version is
#676767. A 20% lighter version of the original color is
#7B83D0, and Hex
#151D6A is the 20% darker color. If the color is saturated by 10%, you get
#454EA2. If the color is desaturated by 10%, the color
#4B5298 is obtained.