The hex color #81178c is a dark color. The web-safe version is Hex
#990099. A complementary color is
#7EE873. The grayscale version is
#616161. A 20% lighter version of the original color is
#B44ABF, and Hex
#4E0059 is the 20% darker color. If the color is saturated by 10%, you get
#841090. If the color is desaturated by 10%, the color
#7E1E88 is obtained.