The hex color #6b299c is a dark color. The web-safe version is Hex
#663399. A complementary color is
#94D663. The grayscale version is
#656565. A 20% lighter version of the original color is
#9E5CCF, and Hex
#380069 is the 20% darker color. If the color is saturated by 10%, you get
#6C23A1. If the color is desaturated by 10%, the color
#6A2F97 is obtained.