The hex color #34185c is a dark color. The web-safe version is Hex
#330066. A complementary color is
#CBE7A3. The grayscale version is
#383838. A 20% lighter version of the original color is
#674B8F, and Hex
#010029 is the 20% darker color. If the color is saturated by 10%, you get
#341560. If the color is desaturated by 10%, the color
#341B58 is obtained.