The hex color #421a5c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#BDE5A3. The grayscale version is
#3D3D3D. A 20% lighter version of the original color is
#754D8F, and Hex
#0F0029 is the 20% darker color. If the color is saturated by 10%, you get
#42165F. If the color is desaturated by 10%, the color
#421E59 is obtained.