The hex color #3d246c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#C2DB93. The grayscale version is
#444444. A 20% lighter version of the original color is
#70579F, and Hex
#0A0039 is the 20% darker color. If the color is saturated by 10%, you get
#3C2170. If the color is desaturated by 10%, the color
#3E2768 is obtained.