The hex color #a05ca5 is a dark color. The web-safe version is Hex
#996699. A complementary color is
#5FA35A. The grayscale version is
#8B8B8B. A 20% lighter version of the original color is
#D38FD8, and Hex
#6D2972 is the 20% darker color. If the color is saturated by 10%, you get
#A257A8. If the color is desaturated by 10%, the color
#9E61A2 is obtained.