The hex color #90177c is a dark color. The web-safe version is Hex
#990066. A complementary color is
#6FE883. The grayscale version is
#616161. A 20% lighter version of the original color is
#C34AAF, and Hex
#5D0049 is the 20% darker color. If the color is saturated by 10%, you get
#95107F. If the color is desaturated by 10%, the color
#8B1E79 is obtained.