The hex color #3d2ba6 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#C2D459. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#705ED9, and Hex
#0A0073 is the 20% darker color. If the color is saturated by 10%, you get
#3A26AE. If the color is desaturated by 10%, the color
#40309E is obtained.