The hex color #a648ea is a dark color. The web-safe version is Hex
#9933FF. A complementary color is
#59B715. The grayscale version is
#9D9D9D. A 20% lighter version of the original color is
#D97BFF, and Hex
#7315B7 is the 20% darker color. If the color is saturated by 10%, you get
#A73FF2. If the color is desaturated by 10%, the color
#A551E2 is obtained.