The hex color #a257ef is a dark color. The web-safe version is Hex
#9966FF. A complementary color is
#5DA810. The grayscale version is
#A3A3A3. A 20% lighter version of the original color is
#D58AFF, and Hex
#6F24BC is the 20% darker color. If the color is saturated by 10%, you get
#A24FF7. If the color is desaturated by 10%, the color
#A25FE7 is obtained.