The hex color #42134c is a dark color. The web-safe version is Hex
#330033. A complementary color is
#BDECB3. The grayscale version is
#363636. A 20% lighter version of the original color is
#75467F, and Hex
#0F0019 is the 20% darker color. If the color is saturated by 10%, you get
#43104E. If the color is desaturated by 10%, the color
#41164A is obtained.